Detection in networked radar

Kaitlyn Beaudet, Lauren Crider, Douglas Cochran

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

The potential applicability of multiple-channel coherence estimation in situations where one channel contains a noise-free signal replica (as in active radar) or a high-SNR reference signal (as in passive coherent radar) has been proposed in recent work. Invariance of the distribution of M-channel coherence estimate statistics, including recently derived variants optimized for detection of signals having known rank, to the presence of a strong signal on one channel provided all channels are independent and the other M 1 channels contain only noise enables the desired use of these statistics without altering detection thresholds designed to provide desired false-alarm probabilities. Traditionally, multiple-channel detection using coherence estimates has assumed that time series data from all channels are aggregated at a fusion center. Mitigation of this requirement to demand global aggregation of only scalar statistics that can be computed locally by sharing of data between pairs of nodes has been explored, and the use of maximum-entropy methods to provide surrogate statistics for pairs of nodes that are not in direct communication within a network has been proposed for traditional passive detection problems. This paper examines the applicability of this idea in the presence of a strong reference channel with particular attention to ascertaining relationships between network topology and detection performance.

Original languageEnglish (US)
Title of host publicationAlgorithms for Synthetic Aperture Radar Imagery XX
DOIs
StatePublished - Aug 9 2013
EventAlgorithms for Synthetic Aperture Radar Imagery XX - Baltimore, MD, United States
Duration: May 1 2013May 2 2013

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8746
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

OtherAlgorithms for Synthetic Aperture Radar Imagery XX
CountryUnited States
CityBaltimore, MD
Period5/1/135/2/13

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Keywords

  • Mimo radar
  • Multi-channel detection
  • Multistatic radar
  • Passive coherent radar

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Beaudet, K., Crider, L., & Cochran, D. (2013). Detection in networked radar. In Algorithms for Synthetic Aperture Radar Imagery XX [87460V] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 8746). https://doi.org/10.1117/12.2020670