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Title: Instantaneous ultra-wideband sensing using frequency-domain channelization

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.

Inventors:
;
Issue Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1735316
Patent Number(s):
10788568
Application Number:
16/025,843
Assignee:
National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01S - RADIO DIRECTION-FINDING
DOE Contract Number:  
NA0003525
Resource Type:
Patent
Resource Relation:
Patent File Date: 07/02/2018
Country of Publication:
United States
Language:
English

Citation Formats

Loui, Hung, and Maio, Brianna. Instantaneous ultra-wideband sensing using frequency-domain channelization. United States: N. p., 2020. Web.
Loui, Hung, & Maio, Brianna. Instantaneous ultra-wideband sensing using frequency-domain channelization. United States.
Loui, Hung, and Maio, Brianna. Tue . "Instantaneous ultra-wideband sensing using frequency-domain channelization". United States. https://www.osti.gov/servlets/purl/1735316.
@article{osti_1735316,
title = {Instantaneous ultra-wideband sensing using frequency-domain channelization},
author = {Loui, Hung and Maio, Brianna},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {9}
}

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Works referenced in this record:

Nyquist folded bandpass sampling receivers and related methods
patent, October 2008


Ultra wide bandwidth spread-spectrum communications system
patent, May 2005


Analog to digital conversion with signal expansion
patent, August 2007