Instantaneous ultra-wideband sensing using frequency-domain channelization
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United States of America Patent
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Sep 29, 2020
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app pub date -
Jul 2, 2018
filing date -
Jul 2, 2018
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Abstract
A radar system wherein a radar return is channelized by frequency into a plurality of channels, and each of the channels is sampled by a respective analog-to-digital converter that has a sampling rate less than the Nyquist rate of the radar return. The digitally sampled channel signals are Fourier transformed into the frequency domain, where each of the frequency-domain channel signals is matched-filtered according to a respective partial matched filter. The channel signals are then transformed back to the time domain, whereupon they are added together to generate the impulse response of the radar system responsive to the radar return.
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