Procedure for jammer detection

Details Procedure for jammer detection Procedure for jammer detection

2006-10-24

2006-10-24

Tran, Khai (Department: 2611)

Pulse or digital communications

Receivers

Interference or noise reduction

C375S254000

Reexamination Certificate

active

07127011

ABSTRACT:
A method of and system for detecting whether a peak of a correlation function derived from a received signal is due to a jammer. The peak is within a localized portion of the correlation function which has a total number of peaks. In one embodiment, the total number of peaks is compared to a threshold number of peaks, and the peak is identified as being due to a jammer if the total number of peaks equals or exceeds a threshold number of peaks. In a second embodiment, the peak energy in relation to a noise estimate for the localized portion of the correlation function is compared to a jammer threshold. The peak is identified as being due to a jammer if the peak energy in relation to the noise estimate is less than or equal to the jammer threshold.

REFERENCES:
patent: 5995042 (1999-11-01), Durboraw, III et al.
patent: 6236354 (2001-05-01), Krasner
patent: 6448925 (2002-09-01), Kudhrethaya
patent: 6795490 (2004-09-01), Belotserkovsky
patent: 2000028457 (2000-02-01), None

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