Slaved Gram Schmidt Adaptive Noise Cancellation Method and Apparatus.
Patent, Filed 30 May 91, patented 13 Feb 96,
DEPARTMENT OF THE NAVY WASHINGTON DC
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A method and apparatus are provided for filtering noise from a plurality of input signals in a sensor system One first main input signal and several first auxiliary input signals are obtained and interior weights corresponding to the first main and auxiliary signals are determined. Thereafter, equivalent linear weights corresponding to the interior weights are determined and the equivalent linear weights are applied to second main and auxiliary input signals to filter the second main and auxiliary signals and produce one final output signal. Alternatively, the first input signals can be a subset of the second input signals such that a large set of input signals can be filtered by calculating weighting factors from a subset thereof.
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