Digital signal processing

Digital signal processing (DSP) is the use of digital processing, such as by computers or more specialized digital signal processors, to perform a wide variety of signal processing operations. The digital signals processed in this manner are a sequence of numbers that represent samples of a continuous variable in a domain such as time, space, or frequency. In digital electronics, a digital signal is represented as a pulse train, which is typically generated by the switching of a transistor.

Extends: [Digital signal processing](https://wikipedia.org.ai/Digital signal processing), [Digital electronics](https://wikipedia.org.ai/Digital electronics), [Computer engineering](https://wikipedia.org.ai/Computer engineering), [Telecommunication theory](https://wikipedia.org.ai/Telecommunication theory), [Radar signal processing](https://wikipedia.org.ai/Radar signal processing)