PREFACE |
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XVII | (8) |
ACKNOWLEDGMENTS |
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XXV | (2) |
FOREWORD |
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XXVII | |
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1 | (73) |
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1 | (1) |
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1.1 Continuous-Time and Discrete-Time Signals |
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1 | (6) |
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1.1.1 Examples and Mathematical Representation |
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1 | (4) |
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1.1.2 Signal Energy and Power |
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5 | (2) |
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1.2 Transformations of the Independent Variable |
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7 | (7) |
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1.2.1 Examples of Transformations of the Independent Variable |
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8 | (3) |
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11 | (2) |
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1.2.3 Even and Odd Signals |
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13 | (1) |
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1.3 Exponential and Sinusoidal Signals |
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14 | (16) |
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1.3.1 Continuous-Time Complex Exponential and Sinusoidal Signals |
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15 | (6) |
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1.3.2 Discrete-Time Complex Exponential and Sinusoidal Signals |
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21 | (4) |
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1.3.3 Periodicity Properties of Discrete-Time Complex Exponentials |
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25 | (5) |
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1.4 The Unit Impulse and Unit Step Functions |
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30 | (8) |
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1.4.1 The Discrete-Time Unit Impulse and Unit Step Sequences |
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30 | (2) |
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1.4.2 The Continuous-Time Unit Step and Unit Impulse Functions |
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32 | (6) |
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1.5 Continuous-Time and Discrete-Time Systems |
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38 | (6) |
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1.5.1 Simple Examples of Systems |
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39 | (2) |
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1.5.2 Interconnections of Systems |
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41 | (3) |
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1.6 Basic System Properties |
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44 | (12) |
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1.6.1 Systems with and without Memory |
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44 | (1) |
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1.6.2 Invertibility and Inverse Systems |
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45 | (1) |
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46 | (2) |
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48 | (2) |
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50 | (3) |
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53 | (3) |
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56 | (1) |
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57 | (17) |
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2 LINEAR TIME-INVARIANT SYSTEMS |
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74 | (103) |
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74 | (1) |
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2.1 Discrete-Time LTI Systems: The Convolution Sum |
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75 | (15) |
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2.1.1 The Representation of Discrete-Time Signals in Terms of Impulses |
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75 | (2) |
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2.1.2 The Discrete-Time Unit Impulse Response and the Convolution-Sum Representation of LTI Systems |
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77 | (13) |
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2.2 Continuous-Time LTI Systems: The Convolution Integral |
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90 | (13) |
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2.2.1 The Representation of Continuous-Time Signals in Terms of Impulses |
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90 | (4) |
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2.2.2 The Continuous-Time Unit Impulse Response and the Convolution Integral Representation of LTI Systems |
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94 | (9) |
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2.3 Properties of Linear Time-Invariant Systems |
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103 | (13) |
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2.3.1 The Commutative Property |
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104 | (1) |
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2.3.2 The Distributive Property |
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104 | (3) |
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2.3.3 The Associative Property |
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107 | (1) |
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2.3.4 LTI Systems with and without Memory |
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108 | (1) |
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2.3.5 Invertibility of LTI Systems |
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109 | (3) |
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2.3.6 Causality for LTI Systems |
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112 | (1) |
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2.3.7 Stability for LTI Systems |
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113 | (2) |
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2.3.8 The Unit Step Response of an LTI System |
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115 | (1) |
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2.4 Causal LTI Systems Described by Differential and Difference Equations |
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116 | (11) |
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2.4.1 Linear Constant-Coefficient Differential Equations |
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117 | (4) |
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2.4.2 Linear Constant-Coefficient Difference Equations |
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121 | (3) |
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2.4.3 Block Diagram Representations of First-Order Systems Described by Differential and Difference Equations |
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124 | (3) |
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2.5 Singularity Functions |
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127 | (10) |
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2.5.1 The Unit Impulse as an Idealized Short Pulse |
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128 | (3) |
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2.5.2 Defining the Unit Impulse through Convolution |
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131 | (1) |
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2.5.3 Unit Doublets and Other Singularity Functions |
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132 | (5) |
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137 | (1) |
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137 | (40) |
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3 FOURIER SERIES REPRESENTATION OF PERIODIC SIGNALS |
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177 | (107) |
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177 | (1) |
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3.1 A Historical Perspective |
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178 | (4) |
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3.2 The Response of LTI Systems to Complex Exponentials |
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182 | (4) |
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3.3 Fourier Series Representation of Continuous-Time Periodic Signals |
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186 | (9) |
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3.3.1 Linear Combinations of Harmonically Related Complex Exponentials |
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186 | (4) |
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3.3.2 Determination of the Fourier Series Representation of a Continuous-Time Periodic Signal |
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190 | (5) |
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3.4 Convergence of the Fourier Series |
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195 | (7) |
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3.5 Properties of Continuous-Time Fourier Series |
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202 | (9) |
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202 | (1) |
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202 | (1) |
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203 | (1) |
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204 | (1) |
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204 | (1) |
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3.5.6 Conjugation and Conjugate Symmetry |
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204 | (1) |
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3.5.7 Parseval's Relation for Continuous-Time Periodic Signals |
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205 | (1) |
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3.5.8 Summary of Properties of the Continuous-Time Fourier Series |
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205 | (1) |
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205 | (6) |
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3.6 Fourier Series Representation of Discrete-Time Periodic Signals |
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211 | (10) |
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3.6.1 Linear Combinations of Harmonically Related Complex Exponentials |
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211 | (1) |
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3.6.2 Determination of the Fourier Series Representation of a Periodic Signal |
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212 | (9) |
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3.7 Properties of Discrete-Time Fourier Series |
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221 | (5) |
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222 | (1) |
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222 | (1) |
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3.7.3 Parseval's Relation for Discrete-Time Periodic Signals |
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223 | (1) |
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223 | (3) |
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3.8 Fourier Series and LTI Systems |
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226 | (5) |
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231 | (8) |
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3.9.1 Frequency-Shaping Filters |
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232 | (4) |
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3.9.2 Frequency-Selective Filters |
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236 | (3) |
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3.10 Examples of Continuous-Time Filters Described by Differential Equations |
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239 | (5) |
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3.10.1 A Simple RC Lowpass Filter |
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239 | (2) |
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3.10.2 A Simple RC Highpass Filter |
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241 | (3) |
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3.11 Examples of Discrete-Time Filters Described by Difference Equations |
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244 | (5) |
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3.11.1 First-Order Recursive Discrete-Time Filters |
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244 | (1) |
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3.11.2 Nonrecursive Discrete-Time Filters |
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245 | (4) |
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249 | (1) |
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250 | (34) |
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4 THE CONTINUOUS-TIME FOURIER TRANSFORM |
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284 | (74) |
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284 | (1) |
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4.1 Representation of Aperiodic Signals: The Continuous-Time Fourier Transform |
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285 | (11) |
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4.1.1 Development of the Fourier Transform Representation of an Aperiodic Signal |
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285 | (4) |
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4.1.2 Convergence of Fourier Transforms |
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289 | (1) |
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4.1.3 Examples of Continuous-Time Fourier Transforms |
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290 | (6) |
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4.2 The Fourier Transform for Periodic Signals |
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296 | (4) |
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4.3 Properties of the Continuous-Time Fourier Transform |
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300 | (14) |
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301 | (1) |
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301 | (2) |
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4.3.3 Conjugation and Conjugate Symmetry |
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303 | (3) |
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4.3.4 Differentiation and Integration |
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306 | (2) |
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4.3.5 Time and Frequency Scaling |
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308 | (1) |
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309 | (3) |
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4.3.7 Parseval's Relation |
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312 | (2) |
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4.4 The Convolution Property |
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314 | (8) |
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317 | (5) |
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4.5 The Multiplication Property |
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322 | (6) |
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4.5.1 Frequency-Selective Filtering with Variable Center Frequency |
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325 | (3) |
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4.6 Tables of Fourier Properties and of Basic Fourier Transform Pairs |
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328 | (2) |
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4.7 Systems Characterized by Linear Constant-Coefficient Differential Equations |
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330 | (3) |
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333 | (1) |
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334 | (24) |
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5 THE DISCRETE-TIME FOURIER TRANSFORM |
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358 | (65) |
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358 | (1) |
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5.1 Representation of Aperiodic Signals: The Discrete-Time Fourier Transform |
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359 | (8) |
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5.1.1 Development of the Discrete-Time Fourier Transform |
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359 | (3) |
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5.1.2 Examples of Discrete-Time Fourier Transforms |
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362 | (4) |
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5.1.3 Convergence Issues Associated with the Discrete-Time Fourier Transform |
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366 | (1) |
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5.2 The Fourier Transform for Periodic Signals |
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367 | (5) |
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5.3 Properties of the Discrete-Time Fourier Transform |
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372 | (10) |
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5.3.1 Periodicity of the Discrete-Time Fourier Transform |
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373 | (1) |
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5.3.2 Linearity of the Fourier Transform |
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373 | (1) |
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5.3.3 Time Shifting and Frequency Shifting |
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373 | (2) |
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5.3.4 Conjugation and Conjugate Symmetry |
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375 | (1) |
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5.3.5 Differencing and Accumulation |
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375 | (1) |
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376 | (1) |
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377 | (3) |
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5.3.8 Differentiation in Frequency |
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380 | (1) |
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5.3.9 Parseval's Relation |
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380 | (2) |
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5.4 The Convolution Property |
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382 | (6) |
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383 | (5) |
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5.5 The Multiplication Property |
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388 | (2) |
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5.6 Tables of Fourier Transform Properties and Basic Fourier Transform Pairs |
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390 | (1) |
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390 | (6) |
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5.7.1 Duality in the Discrete-Time Fourier Series |
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391 | (4) |
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5.7.2 Duality between the Discrete-Time Fourier Transform and the Continuous-Time Fourier Series |
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395 | (1) |
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5.8 Systems Characterized by Linear Constant-Coefficient Difference Equations |
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396 | (3) |
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399 | (1) |
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400 | (23) |
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6 TIME AND FREQUENCY CHARACTERIZATION OF SIGNALS AND SYSTEMS |
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423 | (91) |
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423 | (1) |
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6.1 The Magnitude-Phase Representation of the Fourier Transform |
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423 | (4) |
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6.2 The Magnitude-Phase Representation of the Frequency Response of LTI Systems |
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427 | (12) |
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6.2.1 Linear and Nonlinear Phase |
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428 | (2) |
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430 | (6) |
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6.2.3 Log-Magnitude and Bode Plots |
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436 | (3) |
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6.3 Time-Domain Properties of Ideal Frequency-Selective Filters |
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439 | (5) |
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6.4 Time-Domain and Frequency-Domain Aspects of Nonideal Filters |
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444 | (4) |
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6.5 First-Order and Second-Order Continuous-Time Systems |
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448 | (13) |
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6.5.1 First-Order Continuous-Time Systems |
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448 | (3) |
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6.5.2 Second-Order Continuous-Time Systems |
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451 | (5) |
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6.5.3 Bode Plots for Rational Frequency Responses |
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456 | (5) |
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6.6 First-Order and Second-Order Discrete-Time Systems |
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461 | (11) |
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6.6.1 First-Order Discrete-Time Systems |
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461 | (4) |
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6.6.2 Second-Order Discrete-Time Systems |
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465 | (7) |
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6.7 Examples of Time- and Frequency-Domain Analysis of Systems |
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472 | (10) |
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6.7.1 Analysis of an Automobile Suspension System |
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473 | (3) |
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6.7.2 Examples of Discrete-Time Nonrecursive Filters |
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476 | (6) |
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482 | (1) |
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483 | (31) |
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514 | (68) |
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514 | (1) |
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7.1 Representation of a Continuous-Time Signal by Its Samples: The Sampling Theorem |
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515 | (7) |
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7.1.1 Impulse-Train Sampling |
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516 | (4) |
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7.1.2 Sampling with a Zero-Order Hold |
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520 | (2) |
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7.2 Reconstruction of a Signal from Its Samples Using Interpolation |
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522 | (5) |
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7.3 The Effect of Undersampling: Aliasing |
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527 | (7) |
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7.4 Discrete-Time Processing of Continuous-Time Signals |
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534 | (11) |
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7.4.1 Digital Differentiator |
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541 | (2) |
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543 | (2) |
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7.5 Sampling of Discrete-Time Signals |
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545 | (10) |
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7.5.1 Impulse-Train Sampling |
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545 | (4) |
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7.5.2 Discrete-Time Decimation and Interpolation |
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549 | (6) |
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555 | (1) |
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556 | (26) |
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582 | (72) |
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582 | (1) |
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8.1 Complex Exponential and Sinusoidal Amplitude Modulation |
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583 | (4) |
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8.1.1 Amplitude Modulation with a Complex Exponential Carrier |
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583 | (2) |
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8.1.2 Amplitude Modulation with a Sinusoidal Carrier |
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585 | (2) |
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8.2 Demodulation for Sinusoidal AM |
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587 | (7) |
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8.2.1 Synchronous Demodulation |
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587 | (3) |
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8.2.2 Asynchronous Demodulation |
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590 | (4) |
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8.3 Frequency-Division Multiplexing |
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594 | (3) |
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8.4 Single-Sideband Sinusoidal Amplitude Modulation |
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597 | (4) |
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8.5 Amplitude Modulation with a Pulse-Train Carrier |
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601 | (3) |
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8.5.1 Modulation of a Pulse-Train Carrier |
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601 | (3) |
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8.5.2 Time-Division Multiplexing |
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604 | (1) |
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8.6 Pulse-Amplitude Modulation |
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604 | (7) |
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8.6.1 Pulse-Amplitude Modulated Signals |
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604 | (3) |
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8.6.2 Intersymbol Interference in PAM Systems |
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607 | (3) |
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8.6.3 Digital Pulse-Amplitude and Pulse-Code Modulation |
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610 | (1) |
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8.7 Sinusoidal Frequency Modulation |
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611 | (8) |
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8.7.1 Narrowband Frequency Modulation |
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613 | (2) |
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8.7.2 Wideband Frequency Modulation |
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615 | (2) |
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8.7.3 Periodic Square-Wave Modulating Signal |
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617 | (2) |
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8.8 Discrete-Time Modulation |
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619 | (4) |
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8.8.1 Discrete-Time Sinusoidal Amplitude Modulation |
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619 | (4) |
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8.8.2 Discrete-Time Transmodulation |
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623 | (1) |
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623 | (2) |
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625 | (29) |
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654 | (87) |
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654 | (1) |
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9.1 The Laplace Transform |
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655 | (7) |
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9.2 The Region of Convergence for Laplace Transforms |
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662 | (8) |
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9.3 The Inverse Laplace Transform |
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670 | (4) |
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9.4 Geometric Evaluation of the Fourier Transform from the Pole-Zero Plot |
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674 | (8) |
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9.4.1 First-Order Systems |
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676 | (1) |
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9.4.2 Second-Order Systems |
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677 | (4) |
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681 | (1) |
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9.5 Properties of the Laplace Transform |
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682 | (10) |
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9.5.1 Linearity of the Laplace Transform |
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683 | (1) |
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684 | (1) |
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9.5.3 Shifting in the s-Domain |
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685 | (1) |
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685 | (2) |
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687 | (1) |
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9.5.6 Convolution Property |
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687 | (1) |
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9.5.7 Differentiation in the Time Domain |
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688 | (1) |
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9.5.8 Differentiation in the s-Domain |
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688 | (2) |
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9.5.9 Integration in the Time Domain |
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690 | (1) |
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9.5.10 The Initial- and Final-Value Theorems |
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690 | (1) |
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9.5.11 Table of Properties |
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691 | (1) |
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9.6 Some Laplace Transform Pairs |
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692 | (1) |
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9.7 Analysis and Characterization of LTI Systems Using the Laplace Transform |
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693 | (13) |
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693 | (2) |
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695 | (3) |
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9.7.3 LTI Systems Characterized by Linear Constant-Coefficient Differential Equations |
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698 | (3) |
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9.7.4 Examples Relating System Behavior to the System Function |
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701 | (2) |
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9.7.5 Butterworth Filters |
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703 | (3) |
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9.8 System Function Algebra and Block Diagram Representations |
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706 | (8) |
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9.8.1 System Functions for Interconnections of LTI Systems |
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707 | (1) |
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9.8.2 Block Diagram Representations for Causal LTI Systems Described by Differential Equations and Rational System Functions |
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708 | (6) |
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9.9 The Unilateral Laplace Transform |
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714 | (6) |
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9.9.1 Examples of Unilateral Laplace Transforms |
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714 | (2) |
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9.9.2 Properties of the Unilateral Laplace Transform |
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716 | (3) |
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9.9.3 Solving Differential Equations Using the Unilateral Laplace Transform |
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719 | (1) |
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720 | (1) |
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721 | (20) |
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741 | (75) |
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741 | (1) |
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741 | (7) |
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10.2 The Region of Convergence for the z-Transform |
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748 | (9) |
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10.3 The Inverse z-Transform |
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757 | (6) |
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10.4 Geometric Evaluation of the Fourier Transform from the Pole-Zero Plot |
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763 | (4) |
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10.4.1 First-Order Systems |
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763 | (2) |
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10.4.2 Second-Order Systems |
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765 | (2) |
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10.5 Properties of the z-Transform |
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767 | (7) |
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767 | (1) |
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767 | (1) |
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10.5.3 Scaling in the z-Domain |
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768 | (1) |
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769 | (1) |
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769 | (1) |
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770 | (1) |
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10.5.7 The Convolution Property |
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770 | (2) |
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10.5.8 Differentiation in the z-Domain |
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772 | (1) |
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10.5.9 The Initial-Value Theorem |
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773 | (1) |
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10.5.10 Summary of Properties |
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774 | (1) |
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10.6 Some Common z-Transform Pairs |
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774 | (1) |
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10.7 Analysis and Characterization of LTI Systems Using z-Transforms |
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774 | (9) |
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776 | (1) |
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777 | (2) |
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10.7.3 LTI Systems Characterized by Linear Constant-Coefficient Difference Equations |
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779 | (2) |
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10.7.4 Examples Relating System Behavior to the System Function |
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781 | (2) |
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10.8 System Function Algebra and Block Diagram Representations |
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783 | (6) |
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10.8.1 System Functions for Interconnections of LTI Systems |
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784 | (1) |
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10.8.2 Block Diagram Representations for Causal LTI Systems Described by Difference Equations and Rational System Functions |
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784 | (5) |
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10.9 The Unilateral z-Transform |
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789 | (7) |
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10.9.1 Examples of Unilateral z-Transforms and Inverse Transforms |
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790 | (2) |
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10.9.2 Properties of the Unilateral z-Transform |
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792 | (3) |
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10.9.3 Solving Difference Equations Using the Unilateral z-Transform |
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795 | (1) |
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796 | (1) |
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797 | (19) |
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11 LINEAR FEEDBACK SYSTEMS |
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816 | (93) |
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816 | (3) |
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11.1 Linear Feedback Systems |
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819 | (1) |
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11.2 Some Applications and Consequences of Feedback |
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820 | (12) |
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11.2.1 Inverse System Design |
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820 | (1) |
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11.2.2 Compensation for Nonideal Elements |
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821 | (2) |
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11.2.3 Stabilization of Unstable Systems |
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823 | (3) |
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11.2.4 Sampled-Data Feedback Systems |
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826 | (2) |
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828 | (2) |
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11.2.6 Destabilization Caused by Feedback |
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830 | (2) |
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11.3 Root-Locus Analysis of Linear Feedback Systems |
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832 | (14) |
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11.3.1 An Introductory Example |
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833 | (1) |
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11.3.2 Equation for the Closed-Loop Poles |
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834 | (2) |
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11.3.3 The End Points of the Root Locus: The Closed-Loop Poles for K = 0 and ¦K¦ = +(XXX) |
|
|
836 | (1) |
|
11.3.4 The Angle Criterion |
|
|
836 | (5) |
|
11.3.5 Properties of the Root Locus |
|
|
841 | (5) |
|
11.4 The Nyquist Stability Criterion |
|
|
846 | (12) |
|
11.4.1 The Encirclement Property |
|
|
847 | (3) |
|
11.4.2 The Nyquist Criterion for Continuous-Time LTI Feedback Systems |
|
|
850 | (6) |
|
11.4.3 The Nyquist Criterion for Discrete-Time LTI Feedback Systems |
|
|
856 | (2) |
|
11.5 Gain and Phase Margins |
|
|
858 | (8) |
|
|
866 | (1) |
|
|
867 | (42) |
APPENDIX PARTIAL-FRACTION EXPANSION |
|
909 | (12) |
BIBLIOGRAPHY |
|
921 | (10) |
ANSWERS |
|
931 | (10) |
INDEX |
|
941 | |