The digital signal processing systems are very often embarqued (on satellites,pacemakers,etc.) or produced on a very large scale (modems,phone systems,etc.).This remark shows that correctness is one of the chief aims of designing: a zero default design.So-metimes,these systems may also induce a large amount of computing (target identification in radar or sonar systems,etc.) which has to be done fast enough.This second remark justifies the use of a fast technology (dedicated processors such as DSP).
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