Methods and apparatus for digital jammer detection

Details Methods and apparatus for digital jammer detection Methods and apparatus for digital jammer detection

2006-09-06

2010-02-09

Nguyen, Tu X (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

Noise or interference elimination

C455S239100

Reexamination Certificate

active

07660569

ABSTRACT:
Methods and apparatus for digital jammer detection. In an aspect, a method is provided for detecting a jammer in a received waveform. The method includes filtering the received waveform to produce a filtered waveform and subtracting the filtered waveform from the received waveform to produce a difference waveform. The method also includes determining a power differential associated with the difference waveform, and detecting the jammer if the power differential exceeds a selected threshold. In an aspect, an apparatus is provided that includes a filter configured to filter the received waveform to produce a filtered waveform and combining logic configured to subtract the filtered waveform from the received waveform to produce a difference waveform. The apparatus also includes power determination logic configured to determine a power differential associated with the difference waveform, and decision logic configured to detect the jammer if the power differential exceeds a selected threshold.

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ISR-PCT-US07-115323—Oct. 11, 2007.

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