Instantaneous ultra-wideband sensing using frequency-domain channelization

Patent · Tue Sep 29 00:00:00 EDT 2020

OSTI ID:1735316

Loui, Hung; Maio, Brianna

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.

• Research Organization: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA)
• DOE Contract Number: NA0003525
• Assignee: National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM)
• Patent Number(s): 10,788,568
• Application Number: 16/025,843
• OSTI ID: 1735316
• Resource Relation: Patent File Date: 07/02/2018
• Country of Publication: United States
• Language: English

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