信号与系统（第二版）（英文版）

Signal and System is a comprehensive and systematic textbook that covers the basic concepts, theories, methods, and applications of signal and system. The book consists of 10 chapters that provide a thorough introduction to the topic.In the first chapter, the book introduces the basic concepts of signal and system, including signal classification, basic operations, elementary signals, and noise. The second chapter covers the time-domain analysis methods of linear time-invariant systems, including the convolution sum, convolution integral, and properties of LTI systems. Chapter 3 and 4 discuss Fourier representations for four classes of signals and mixed signal classes. In chapter 5, the book applies the Fourier representation to communication systems and modulation, and it explains the benefits of modulation. The book also discusses filters and equalizers, and passive filters in chapter 8. In chapter 9, the book explores linear feedback systems' concepts such as sensitivity analysis, distortion analysis, and Routh-Hurwitz Criterion. Chapter 10 gives a brief overview of non-stationary signals, nonlinear systems, and adaptive filters.The book is easy to read, and each chapter ends with a summary, further reading, and additional problems. The authors use MATLAB to explore concepts, and it is a valuable resource for students and professionals in this field. This book has filled a gap in this core area of signal processing, making it a valuable resource for anyone wishing to learn signal and system, and I recommend it for anyone interested in signal and system theory and applications.