Telecommunications – Carrier wave repeater or relay system – Portable or mobile repeater
Reexamination Certificate
2003-09-22
2009-06-30
Maung, Nay A. (Department: 2618)
Telecommunications
Carrier wave repeater or relay system
Portable or mobile repeater
C455S013100, C455S427000
Reexamination Certificate
active
07555262
ABSTRACT:
A method for monitoring radio frequency interference (RFI) in a pass band of a satellite signal is provided. The satellite signal includes a carrier signal tracked by a carrier tracking loop located at a receiver. The method involves calculating a statistical variance estimate based on a plurality of discriminator values formed in the carrier tracking loop and calculating an RFI detector from the statistical variance estimate. The method is particularly useful for detecting continuous wave (CW) and narrowband RF interfering signals in the tracking loop pass band.
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Fogg & Powers LLC
Honeywell International , Inc.
Maung Nay A.
Nguyen Tuan H
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