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Title: Spectrum notcher

Abstract: Disclosed is an adaptive filter for suppressing interfering narrow-band signals in a composite signal containing a desired broad-band signal. The adaptive filter is useful in a system which uses a broad-band signal and signal processing apparatus to derive information from the broad-band signal. In one embodiment the system makes use of a delay line to provide a delayed replica of the composite signal which is used to provide a correction signal to cancel the interfering narrow-band signal. The desired broad-band signal is not canceled by the adaptive filter.


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Inventors: Masak, Raymond J. (East Northport, NY, US)

Application Number: 489623
Filing Date: 1974-07-18
Publication_date: 1976-01-13
Assignee: Hazeltine Corporation (Greenlawn, NY)
Primary Class(es): 708/322 327/552, 330/149, 375/350, 455/296
Other Classes:
US Patent Ref:
3213450Oct, 1965Goor325/476.
3810067May, 1974Heidecker328/167.

Other Refs: 1,111,863
May, 1968UK

Primary Examiner: Kominski, John
Assistant Examiner:
Attorney: