Methods for detecting and classifying signals transmitted...

Details Methods for detecting and classifying signals transmitted... Methods for detecting and classifying signals transmitted...

2007-08-15

2011-11-08

West, Lewis G (Department: 2618)

Telecommunications

Transmitter and receiver at separate stations

Having measuring, testing, or monitoring of system or part

C702S189000, C702S066000, C702S070000, C702S073000, C455S226100

Reexamination Certificate

active

08055204

ABSTRACT:
A method for classifying a signal is disclosed. The method can be used by a station or stations within a network to classify the signal as non-cooperative (NC) or a target signal. The method performs classification over channels within a frequency spectrum. The percentage of power above a first threshold is computed for a channel. Based on the percentage, a signal is classified as a narrowband signal. If the percentage indicates the absence of a narrowband signal, then a lower second threshold is applied to confirm the absence according to the percentage of power above the second threshold. The signal is classified as a narrowband signal or pre-classified as a wideband signal based on the percentage. Pre-classified wideband signals are classified as a wideband NC signal or target signal using spectrum masks.

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