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Title: Subaperture clutter filter with CFAR signal detection

Abstract

The various technologies presented herein relate to the determination of whether a received signal comprising radar clutter further comprises a communication signal. The communication signal can comprise of a preamble, a data symbol, communication data, etc. A first portion of the radar clutter is analyzed to determine a radar signature of the first portion of the radar clutter. A second portion of the radar clutter can be extracted based on the radar signature of the first portion. Following extraction, any residual signal can be analyzed to retrieve preamble data, etc. The received signal can be based upon a linear frequency modulation (e.g., a chirp modulation) whereby the chirp frequency can be determined and the frequency of transmission of the communication signal can be based accordingly thereon. The duration and/or bandwidth of the communication signal can be a portion of the duration and/or the bandwidth of the radar clutter.

Inventors:
;
Issue Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1311865
Patent Number(s):
9,429,644
Application Number:
14/052,901
Assignee:
Sandia Corporation (Albuquerque, NM)
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013 Oct 14
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; 42 ENGINEERING

Citation Formats

Ormesher, Richard C., and Naething, Richard M. Subaperture clutter filter with CFAR signal detection. United States: N. p., 2016. Web.
Ormesher, Richard C., & Naething, Richard M. Subaperture clutter filter with CFAR signal detection. United States.
Ormesher, Richard C., and Naething, Richard M. Tue . "Subaperture clutter filter with CFAR signal detection". United States. https://www.osti.gov/servlets/purl/1311865.
@article{osti_1311865,
title = {Subaperture clutter filter with CFAR signal detection},
author = {Ormesher, Richard C. and Naething, Richard M.},
abstractNote = {The various technologies presented herein relate to the determination of whether a received signal comprising radar clutter further comprises a communication signal. The communication signal can comprise of a preamble, a data symbol, communication data, etc. A first portion of the radar clutter is analyzed to determine a radar signature of the first portion of the radar clutter. A second portion of the radar clutter can be extracted based on the radar signature of the first portion. Following extraction, any residual signal can be analyzed to retrieve preamble data, etc. The received signal can be based upon a linear frequency modulation (e.g., a chirp modulation) whereby the chirp frequency can be determined and the frequency of transmission of the communication signal can be based accordingly thereon. The duration and/or bandwidth of the communication signal can be a portion of the duration and/or the bandwidth of the radar clutter.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {8}
}

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Works referenced in this record:

Clutter Reduction for Synthetic Aperture Radar Imagery Based On Adaptive Wavelet Packet Transform - Abstract
journal, January 2000

  • Deng, H.; Ling, H.
  • Journal of Electromagnetic Waves and Applications, Vol. 14, Issue 6
  • DOI: 10.1163/156939300X01625