This book is organized into 5 chapters. The basic concepts of discrete time signals and systems are presented in first chapter and second chapter is devoted to analysis of discrete time systems using Z-transform and Fourier transform. One chapter is devoted to each topic in digital signal processing like discrete Fourier transform (DFT), digital filters and digital signal processors. Considering the highly mathematical nature of this subject, more emphasis has been given to problem-solving methodology. Each chapter provides the foundations and practical implications with a large number of solved numerical examples for better understanding. Salient Features Clear explanation of concepts with appropriate diagrams. Additional explanations for solutions and proofs are provided in separate boxes. Different types of fonts for text, proof and solved problems for better understanding. Step-by-step presentation of proofs and solved problems. Important concepts are summarized at the end of each chapter for quick reference. MATLAB programs related to this book are available free on CBSiCentral App.