Signals and Systems

Inbunden, Engelska, 1996

AvAlan Oppenheim,Alan Willsky,S. Nawab

6 069 kr

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For undergraduate-level courses in Signals and Systems.

This comprehensive exploration of signals and systems develops continuous-time and discrete-time concepts/methods in parallel -- highlighting the similarities and differences -- and features introductory treatments of the applications of these basic methods in such areas as filtering, communication, sampling, discrete-time processing of continuous-time signals, and feedback. Relatively self-contained, the text assumes no prior experience with system analysis, convolution, Fourier analysis, or Laplace and z-transforms.

Produktinformation

Utgivningsdatum1996-10-16
Mått195 x 242 x 39 mm
Vikt1 630 g
FormatInbunden
SpråkEngelska
Antal sidor1 000
Upplaga2
FörlagPearson Education
ISBN9780138147570

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NOTE: Each chapter begins with an Introduction and concludes with a Summary.1. Signals and Systems Continuous-Time and Discrete-Time Signals.Transformations of the Independent Variable.Exponential and Sinusoidal Signals.The Unit Impulse and Unit Step Functions.Continuous-Time and Discrete-Time Systems.Basic System Properties.2. Linear Time-Invariant Systems Discrete-Time LTI Systems: The Convolution Sum.Continuous-Time LTI Systems: The Convolution Integral.Properties of Linear Time-Invariant Systems.Causal LTI Systems Described by Differential and Difference Equations.Singularity Functions.3. Fourier Series Representation of Periodic Signals A Historical Perspective.The Response of LTI Systems to Complex Exponentials.Fourier Series Representation of Continuous-Time Periodic Signals.Convergence of the Fourier Series.Properties of Continuous-Time Fourier Series.Fourier Series Representation of Discrete-Time Periodic Signals.Properties of Discrete-Time Fourier Series.Fourier Series and LTI Systems.Filtering.Examples of Continuous-Time Filters Described by Differential Equations.Examples of Discrete-Time Filters Described by Difference Equations.4. The Continuous-Time Fourier Transform Representation of Aperiodic Signals: The Continuous-Time Fourier Transform.The Fourier Transform for Periodic Signals.Properties of the Continuous-Time Fourier Transform.The Convolution Property.The Multiplication Property.Tables of Fourier Properties and Basic Fourier Transform Pairs.Systems Characterized by Linear Constant-Coefficient Differential Equations5. The Discrete-Time Fourier Transform. Representation of Aperiodic Signals: The Discrete-Time Fourier Transform.The Fourier Transform for Periodic Signals.Properties of the Discrete-Time Fourier Transform.The Convolution Property.The Multiplication Property.Tables of Fourier Transform Properties and Basic Fourier Transform Pairs.Duality.Systems Characterized by Linear Constant-Coefficient Difference Equations.6. Time- and Frequency Characterization of Signals and Systems The Magnitude-Phase Representation of the Fourier Transform.The Magnitude-Phase Representation of the Frequency Response of LTI Systems.Time-Domain Properties of Ideal Frequency-Selective Filters.Time- Domain and Frequency-Domain Aspects of Nonideal Filters.First-Order and Second-Order Continuous-Time Systems.First-Order and Second-Order Discrete-Time Systems.Examples of Time- and Frequency-Domain Analysis of Systems.7. Sampling Representation of a Continuous-Time Signal by Its Samples: The Sampling Theorem.Reconstruction of a Signal from Its Samples Using Interpolation.The Effect of Undersampling: Aliasing.Discrete-Time Processing of Continuous-Time Signals.Sampling of Discrete-Time Signals.8. Communication Systems Complex Exponential and Sinusoidal Amplitude Modulation.Demodulation for Sinusoidal AM. Frequency-Division Multiplexing.Single-Sideband Sinusoidal Amplitude Modulation.Amplitude Modulation with a Pulse-Train Carrier.Pulse-Amplitude Modulation.Sinusoidal Frequency Modulation.Discrete-Time Modulation.9. The Laplace Transform The Laplace Transform.The Region of Convergence for Laplace Transforms.The Inverse Laplace Transform.Geometric Evaluation of the Fourier Transform from the Pole-Zero Plot.Properties of the Laplace Transform.Some Laplace Transform Pairs.Analysis and Characterization of LTI Systems Using the Laplace Transform.System Function Algebra and Block Diagram Representations.The Unilateral Laplace Transform.10. The Z-Transform The z-Transform.The Region of Convergence for the z-Transform.The Inverse z-Transform.Geometric Evaluation of the Fourier Transform from the Pole-Zero Plot.Properties of the z-Transform.Some Common z-Transform Pairs.Analysis and Characterization of LTI Systems Using z-Transforms.System Function Algebra and Block Diagram Representations.The Unilateral z-Transforms.11. Linear Feedback Systems Linear Feedback Systems.Some Applications and Consequences of Feedback.Root-Locus Analysis of Linear Feedback Systems.The Nyquist Stability Criterion.Gain and Phase Margins.Appendix: Partial-Fraction Expansion Bibliography Answers Index