Nonrecursive half-band filter

Details Nonrecursive half-band filter Nonrecursive half-band filter

H - Electricity

03

H

328/0.3

H03H 17/06 (2006.01)

Patent

CA 1311810

27371-175 ABSTRACT OF THE DISCLOSURE A nonrecursive half-band filter which permits the conversion of a complex-value input signal into a complex- value output signal. The pulse response of the filter is modulated onto a complex carrier at a frequency of 1/4 or 3/4 of the sampling rate, the zero phase of this frequency is a whole multiple of n/2, and the sampling rate is halved. Another embodiment of the filter also permits the conversion of a complex-value input signal into a complex-value output signal. In the second embodiment the pulse response is modulated onto a complex carrier of a frequency of one-half the input sampling rate, the zero phase of this frequency is a whole number multiple of n/2, and the sampling rate is doubled.

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