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Line 99: * [[Process control]]{{spaced ndash}} a variety of signals are used, including the industry standard 4-20 mA [[current loop]] * [[Seismology]] * Financial [[Signalling (economics)\|signal processing]]{{spaced ndash}} analyzing financial data using signal processing techniques, especially for prediction purposes. * [[Feature extraction]], such as [[image understanding]] and [[speech recognition]]. * Quality improvement, such as [[noise reduction]], [[image enhancement]], and [[echo cancellation]].

Signal processing: Difference between revisions