Digital Signal Processing (DSP) is the application of a digital computer to modify an analog or digital signal. Typically, the signal beingprocessedis eithertemporal, spatial, orboth. Forexample, an audio signal is temporal, while an image is spatial. A movie is both temporal and spatial. Digital signal processing Analog/digital and digital/analog converter, CPU, DSP, ASIC, FPGA. Advantages: → noise is easy to control after initial quantization → highly linear (within limited dynamic range). Digital Signal Processing 10 Unit Step Signal A signal, which satisfies the following two conditions- 1. ( P)=1 ( Sℎ P≥0 )? 2. ) ( P=0 ( Sℎ Psignal. It has the property of showing discontinuity at t=0. At the point of discontinuity, the signal value is given by the average of signal value. .A signal is a function of independent variables such as time, distance, position, temperature and pressure. A signal carries information, and the objective of signal process ing i t t t flif ti idb this to extract useful information carried by the signal. Signal processing is concerned with the mathematical. Understanding Digital Signal Processing Third Edition Richard G. Lyons Upper Saddle River, NJ. Boston. Indianapolis. San Francisco New York. Toronto. Montreal. London. Munich. Paris. Madrid.
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