Abstract
The chapter introduces the basic principles of digital signal processing (DSP). The chapter highlights how digital signal processing differs from the more conventional analog signal processing and discusses its several advantages. DSP does not have the drawbacks of analog signal processing. DSP systems can also process signals in ways that are impossible for analog systems. Digital signal processing systems sample the input signal and convert them to equivalent digital values. The key features of DSP are that it is versatile, programmable, repeatable, and physically stable. The heart of DSP includes the analog-to-digital converter (ADC), digital processor, and digital-to-analog converter. The processing of digital values is done by a digital data processing unit. The running average filter is an example of this processing unit.
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