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1. (WO2017039819) APPARATUS AND METHOD FOR SELECTIVE SIGNAL CANCELLATION

Pub. No.:    WO/2017/039819    International Application No.:    PCT/US2016/040531
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Fri Jul 01 01:59:59 CEST 2016
IPC: H04B 1/10
Applicants: RAYTHEON COMPANY
Inventors: ROBINSON, Ian, S.
KILFOYLE, Daniel, B.
BALLANCE, William, P.
Title: APPARATUS AND METHOD FOR SELECTIVE SIGNAL CANCELLATION
Abstract:
Method for capturing a high dynamic range signal includes: receiving the wideband analog signal; digitizing the wideband signal by a wideband ADC; detecting N strongest sub-bands in the digitized wideband analog signal; adaptively programming N bandstop filters to block the detected N strongest sub-bands from being digitized by the wideband ADC; adjusting a gain of output signals of the N bandstop filters to amplify said output signals; digitizing the amplified output signals by the wideband ADC to obtain a first digitized signal; adaptively programming N passband filters to pass the detected N strongest sub-bands to N ADCs, respectively; digitizing the detected strongest N sub-band signals output from the N pass-band filters by the respective N ADCs to obtain a plurality of second digitized signals; and processing the first digitized signal and the plurality of second digitized signals to identify any duplicate bands.