Fundamentals of Signals and Systems

The book Signals and Systems by Dr. Vinay Keswani provides a comprehensive foundation for understanding signal behavior and system response in both time and frequency domains. Covering key topics such as Fourier, Laplace, and Z-transforms, convolution, LTI systems, and digital signal processing, it bridges theory with practical applications in communication, control, and biomedical systems. With clear explanations, mathematical formulations, and illustrative examples, the book serves as an essential guide for undergraduate and postgraduate students in electronics and communication engineering.