Signals and Systems by Alan V. Oppenheim, Alan S. Willsky, and S. Hamid Nawab (2014)

The book provides an introduction to signals, systems and modern techniques used in signal processing.

It covers topics such as linear time-invariant systems, Fourier analysis, Laplace and z-transforms, the response of LTI systems to various classes of input signals, the convolution integral and its applications.

It also covers sampling of continuous-time signals, discrete-time signals, and the principles of digital signal processing.

It provides an introduction to the discrete Fourier transform and its applications, including the fast Fourier transform (FFT) algorithm.

It introduces the fundamentals of random signals and noise, and illustrates the use of probability in the analysis and design of signal processing systems.

It covers the basics of communication systems and their components, modulation, demodulation, and coding.

The book includes a variety of pedagogical features such as examples, figures, and problems.

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