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Title: Apodization of spurs in radar receivers using multi-channel processing

Abstract

The various technologies presented herein relate to identification and mitigation of spurious energies or signals (aka "spurs") in radar imaging. Spurious energy in received radar data can be a consequence of non-ideal component and circuit behavior. Such behavior can result from I/Q imbalance, nonlinear component behavior, additive interference (e.g. cross-talk, etc.), etc. The manifestation of the spurious energy in a radar image (e.g., a range-Doppler map) can be influenced by appropriate pulse-to-pulse phase modulation. Comparing multiple images which have been processed using the same data but of different signal paths and modulations enables identification of undesired spurs, with subsequent cropping or apodization of the undesired spurs from a radar image. Spurs can be identified by comparison with a threshold energy. Removal of an undesired spur enables enhanced identification of true targets in a radar image.

Inventors:
;
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1410280
Patent Number(s):
9,823,346
Application Number:
14/560,147
Assignee:
National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM) SNL-A
DOE Contract Number:
AC04-94AL85000
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Dec 04
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Doerry, Armin W., and Bickel, Douglas L. Apodization of spurs in radar receivers using multi-channel processing. United States: N. p., 2017. Web.
Doerry, Armin W., & Bickel, Douglas L. Apodization of spurs in radar receivers using multi-channel processing. United States.
Doerry, Armin W., and Bickel, Douglas L. Tue . "Apodization of spurs in radar receivers using multi-channel processing". United States. doi:. https://www.osti.gov/servlets/purl/1410280.
@article{osti_1410280,
title = {Apodization of spurs in radar receivers using multi-channel processing},
author = {Doerry, Armin W. and Bickel, Douglas L.},
abstractNote = {The various technologies presented herein relate to identification and mitigation of spurious energies or signals (aka "spurs") in radar imaging. Spurious energy in received radar data can be a consequence of non-ideal component and circuit behavior. Such behavior can result from I/Q imbalance, nonlinear component behavior, additive interference (e.g. cross-talk, etc.), etc. The manifestation of the spurious energy in a radar image (e.g., a range-Doppler map) can be influenced by appropriate pulse-to-pulse phase modulation. Comparing multiple images which have been processed using the same data but of different signal paths and modulations enables identification of undesired spurs, with subsequent cropping or apodization of the undesired spurs from a radar image. Spurs can be identified by comparison with a threshold energy. Removal of an undesired spur enables enhanced identification of true targets in a radar image.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Nov 21 00:00:00 EST 2017},
month = {Tue Nov 21 00:00:00 EST 2017}
}

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