Resolving targets using space-time snapshot based on GLRT algorithm

Dinghong Lu, Yang Li*, Chaojie Liang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

Around the space-time snapshot signal model of the array antenna radar receiver, this paper presents a small interval (less than the limit of Rayleigh resolution) target resolution algorithm, and the limit of space-time two-dimensional (2D) resolution. According to statistical detection theories, it presents a local optimum detection strategy based on generalized likelihood ratio test (GLRT) to detect the existence of one single target or two close to each ( whether there is one single target of two contained in echoes). Meanwhile, through the performance analysis of the proposed detector, we deduce the explicit relationship between the space-time 2D parameter difference of the minimum resolution and the signal-to-noise ratio (SNR). The forecast and real performance of the presented detector is verified by Monte-Carlo simulation and the performance of resolving ability is compared with 2D MUSIC approach.

Original languageEnglish
Title of host publicationIET International Radar Conference 2013
Edition617 CP
DOIs
Publication statusPublished - 2013
Externally publishedYes
EventIET International Radar Conference 2013 - Xi'an, China
Duration: 14 Apr 201316 Apr 2013

Publication series

NameIET Conference Publications
Number617 CP
Volume2013

Conference

ConferenceIET International Radar Conference 2013
Country/TerritoryChina
CityXi'an
Period14/04/1316/04/13

Keywords

  • Closely spaced targets
  • GLRT
  • Rayleigh resolution limit
  • Space-time signal processing

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Lu, D., Li, Y., & Liang, C. (2013). Resolving targets using space-time snapshot based on GLRT algorithm. In IET International Radar Conference 2013 (617 CP ed.). Article 0317 (IET Conference Publications; Vol. 2013, No. 617 CP). https://doi.org/10.1049/cp.2013.0317