Physics:Phase response
From HandWiki
Short description: Effect of filters or amplifiers on signals' phases as function of frequency
In signal processing, phase response is the relationship between the phase of a sinusoidal input and the output signal passing through any device that accepts input and produces an output signal, such as an amplifier or a filter.[1]
Amplifiers, filters, and other devices are often categorized by their amplitude and/or phase response. The amplitude response is the ratio of output amplitude to input, usually a function of the frequency. Similarly, phase response is the phase of the output with the input as reference. The input is defined as zero phase. A phase response is not limited to lying between 0° and 360°, as phase can accumulate to any amount of time.
See also
References
- ↑ Smith, J.O.. "Introduction to Digital Filters with Audio Applications". J.O. Smith. http://ccrma.stanford.edu/~jos/filters/. Retrieved 1 February 2019.
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