Signal processing underpins many modern technologies, from telecommunications to multimedia systems and biomedical devices. It involves the analysis and manipulation of signals to extract, transform, or enhance useful information. Digital Signal Processing Fundamentals introduces the key principles, algorithms, and applications of DSP. The book discusses discrete-time signals, Fourier analysis, filtering, and digital transforms. It also covers real-world implementations using hardware and software platforms. With clear explanations and illustrative examples, it provides engineers and students with a solid grounding in the concepts and techniques that drive contemporary digital communication and control systems.