Narrow band interference frequency excision method and means

Details Narrow band interference frequency excision method and means Narrow band interference frequency excision method and means

1992-07-24

1993-11-16

Swann, Tod R.

Pulse or digital communications

Repeaters

Testing

380 34, 375 57, 375 58, 375 99, 455 63, H04K 100

Patent

active

052630480

ABSTRACT:
In a preferred embodiment, a method for excising narrow band interferers in a spread spectrum signal communication which includes the steps of: receiving the spread spectrum signal; digitizing the spread spectrum signal; transforming the digitized signal from the time domain to the frequency domain; discarding the magnitude of the digitized signal and replacing it with a normalized value; and transforming the digitized signal back to the time domain.

REFERENCES:
patent: 4351062 (1982-09-01), Yoshiya
patent: 4962508 (1990-10-01), Kingston
patent: 5018088 (1991-05-01), Higbie
patent: 5029184 (1991-07-01), Andren et al.
patent: 5151920 (1992-09-01), Haagh et al.
"An FFT Based Technique for Surpressing Narrow-Band Interference . . . ", Dipietro, Robert C.; IEEE, CH2673-2/89/0000-1360; Feb. 1989.

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