The field of electrical engineering that focuses on modifying, analyzing and synthesizing signals such as images, sounds and biological measurements is referred to as signal processing. Digital signal processing refers to the utilization of digital processing for signal processing operations. The signals processed in this manner are an arrangement of numbers that represent the samples of a continuous variable in a domain such as space, time and frequency. There are a numerous fields where digital signal processing is applied such as biomedical engineering, telecommunications, seismology, control systems, digital image processing, spectral density estimation, speech processing, radar and sonar. It is useful in data compression as well as in error detection and correction. This book presents the complex subject of digital signal processing in the most comprehensible and easy to understand language. Most of the topics introduced herein cover new techniques and the applications of digital signal processing. This textbook is appropriate for students seeking detailed information in this area as well as for experts.