Digital signal processing: Difference between revisions

Revision as of 16:14, 7 January 2006

Revision as of 01:18, 8 January 2006

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In the quantization stage the representative signal values are approximated by values from a finite set.

In order to properly sample an analog signal the [[Nyquist-Shannon sampling theorem]] must be satisfied. In short, the [[sampling frequency]] must be greater than twice the bandwidth of the signal (provided it is filtered appropriately). A [[digital to analog converter]] (DAC) is used to convert the digital signal back to analog. The use of a digital computer is a key ingredient into [[digital control|digital control systems]]..

== Time and space domains ==