Digital notch filter

Details Digital notch filter Digital notch filter

H - Electricity

03

H

328/0.4

H03H 17/02 (2006.01) G05D 16/20 (2006.01)

Patent

CA 2019795

Abstract of the Invention A method and apparatus for removing an unwanted steady-state "carrier frequency" signal component from samples of an information signal by sampling the information signal at a sampling rate having a frequency twice that of the carrier frequency to form a series of information signal samples, summing each of the information signal samples with its immediately preceding one of the information signal samples, and dividing each of the sample summations by two to form a corresponding series of carrier frequency filtered information signal samples.

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