center frequency

In electrical engineering and telecommunications, the center frequency of a filter or channel is a measure of a central frequency between the upper and lower cutoff frequencies. It is usually defined as either the arithmetic mean or the geometric mean of the lower cutoff frequency and the upper cutoff frequency of a band-pass system or a band-stop system.
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1. In frequency modulation, the rest frequency, i.e., the frequency of the unmodulated carrier. (188 ) Synonym carrier frequency. 2. In facsimile systems, the frequency midway between the picture-black and picture-white frequencies. (188 )

center frequency
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