DocumentCode :
1558911
Title :
Adaptive polarimetric target detection with coherent radar. II. Detection against non-Gaussian background
Author :
Lombardo, P. ; Pastina, D. ; Bucciarelli, T.
Author_Institution :
INFOCOM Dept., Rome Univ., Italy
Volume :
37
Issue :
4
fYear :
2001
fDate :
10/1/2001 12:00:00 AM
Firstpage :
1207
Lastpage :
1220
Abstract :
For pt. I see ibid., vol. 37, no. 4, pp. 1194-1206 (2001).This paper presents the derivation of a polarimetric coherent adaptive scheme to detect a radar target against a non-Gaussian background. This completes the results presented in Part I for the Gaussian background. A Texture Free-Generalized Likelihood Ratio Test (TF-GLRT) detector is derived that exploits the polarimetric characteristics of the received radar echoes to improve the detection performance. The proposed polarimetric detector is shown to have Constant False Alarm Rate (CFAR) when operating against compound-Gaussian clutter with unknown parameters. Its performance is fully characterized by both theoretical analysis and simulation. Moreover, the application to recorded radar data demonstrates the performance improvement achievable in practice
Keywords :
adaptive signal detection; covariance matrices; maximum likelihood detection; probability; radar clutter; radar detection; radar polarimetry; search radar; CFAR; adaptive polarimetric target detection; coherent radar; compound-Gaussian clutter; joint probability density function; non-Gaussian background; normalized clutter covariance matrix; received radar echoes; texture free-generalized likelihood ratio test; Analytical models; Associate members; Detectors; Object detection; Performance analysis; Radar applications; Radar clutter; Radar detection; Radar polarimetry; Testing;
fLanguage :
English
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9251
Type :
jour
DOI :
10.1109/7.976960
Filename :
976960
Link To Document :
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