Title
A Persymmetric GLRT for Adaptive Detection in Compound-Gaussian Clutter With Random Texture
Abstract
We focus on the problem of detecting a signal in compound-Gaussian clutter, where the texture is a random variable with Gamma or inverse Gamma distribution. The persymmetric structure of the covariance matrix is exploited and a persymmetric generalized likelihood ratio test (Per-GLRT) using a three-step procedure is proposed. In addition, we prove that the Per-GLRT ensures constant false alarm rate (CFAR) property with respect to the covariance matrix. Finally, the detector is assessed by Monte Carlo simulations. Performance comparison of the Per-GLRT with the traditional GLRT shows that the former improves the detection performance in training-limited scenarios.
Year
DOI
Venue
2013
10.1109/LSP.2013.2259232
IEEE Signal Process. Lett.
Keywords
Field
DocType
adaptive detection,random processes,compound-gaussian clutter,inverse gamma distribution,monte carlo simulation,maximum likelihood estimation,compound-gaussian,covariance matrices,gamma distribution,persymmetric generalized likelihood ratio test,per-glrt,persymmetric structure,monte carlo methods,gaussian processes,glrt,constant false alarm rate,persymmetric glrt,cfar,signal detection,covariance matrix,random texture,estimation,clutter,shape,radar,detectors,vectors
Monte Carlo method,Random variable,Likelihood-ratio test,Pattern recognition,Clutter,Gaussian,Artificial intelligence,Constant false alarm rate,Covariance matrix,Inverse-gamma distribution,Mathematics
Journal
Volume
Issue
ISSN
20
6
1070-9908
Citations 
PageRank 
References 
7
0.46
7
Authors
4
Name
Order
Citations
PageRank
Yongchan Gao1567.41
Guisheng Liao2996126.36
Shengqi Zhu335326.46
Dong Yang411618.09