Pulse or digital communications – Receivers – Interference or noise reduction
Reexamination Certificate
2007-10-30
2007-10-30
Lugo, David B. (Department: 2611)
Pulse or digital communications
Receivers
Interference or noise reduction
C375S347000, C375S350000, C367S121000, C381S094700
Reexamination Certificate
active
11293183
ABSTRACT:
A method of processing signals received from an array of sensors includes sampling and digitally converting the received signals. The digitally converted signals are processed to provide an output signal, the processing including filtering the signals using a first adaptive filter that enhances a target signal of the digitally converted signals and a second adaptive filter that suppresses an unwanted signal of the digitally converted signals, and processing the filtered signals in a frequency domain to further suppress the unwanted signal. The digitally converted signals are processed to determine a direction of arrival of the target signal, the processing including filtering the signals using a third adaptive filter.
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Bitwave Pte Ltd.
Greenblum & Bernstein P.L.C.
Lugo David B.
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