About Signal Processing

Signal processing is an enabling technology that encompasses the fundamental theory, applications, algorithms, and implementations of processing or transferring information contained in many different physical, symbolic, or abstract formats broadly designated as signals. It uses mathematical, statistical, computational, heuristic, and linguistic representations, formalisms, and techniques for representation, modelling, analysis, synthesis, discovery, recovery, sensing, acquisition, extraction, learning, security, or forensics. The main fields of Signal processing are Analog signal processing, Continuous-time signal , processing, Discrete-time signal processing, Digital signal processing, Nonlinear signal processing, Audio and Video Signal Processing.