Digital Signal Processing is a trademark book that covers all the fundamentals of the area in a well arranged and lucid manner. This fourth edition has been carefully revised to update the text with the latest developments in the field. Enriched with a large number of well-designed problems and MATLAB programs, the book offers a right blend of theory and application. The book is suitable as a text for subjects Signals and Systems and Digital Signal Processing in B.E./B.Tech., AMIE and Grade IETE degree programs, and for the subject Advanced Digital Signal Processing in the M.E./M.Tech. degree program. It will also serve as a useful reference to those preparing for competitive examinations.Salient Features:1. Detailed coverage of latest AICTE model curriculum2. Digital Signal Processing presented with an application-based approach3. Learning Objective (LOs) and Level of Difficulty (LODs) added to render clarity and preciseness4. Newly written and updated chapters on Continuous Time Signals, Discrete Fourier Transform, and Fast Fourier Transform5. Expanded coverage on topics like Convolution, ROC for Laplace Transform, Goertzel algorithm, BIBO stability, Filter structures, etc.6. Updated MATLAB Programs along with their outputs