Signal processing is the technology used in transferring information contained in different formats called signals. It uses different tools for acquisition, extraction, recovery, sensing, learning and modeling. Radio engineering is mainly concerned with control, coverage and generation of signals of transmission systems. The important topics covered under this discipline include antennas, receivers, amplifiers, tuners, modulators and demodulators. This book discusses the fundamentals as well as modern approaches of signal processing and radioengineering. It includes some of the vital pieces of work being conducted across the globe on various topics related to signal processing and radioengineering. This book attempts to understand the multiple branches that fall under these fields and how such concepts have practical applications. It will serve as a valuable source of reference for graduate and post graduate students.