A CFAR Adaptive Subspace Detector Based on a Single Observation in System-Dependent Clutter Background
(2014) In IEEE Transactions on Signal Processing 62(20). p.5260-5269- Abstract
- In this paper, the problem of detecting target in system-dependent clutter (SDC) background with a single observation from the test cell is researched. Classical detectors, such as the generalized likelihood ratio detectors (GLRDs) and the adaptive matched filters (AMFs), etc., usually deal with the clutter and the noise as a whole. The low rank detectors (LRDs) make use of the low rank property of the clutter to improve the detection performance. However, the performance of LRDs degrades when the signal is not orthogonal with respect to (w.r.t.) the clutter. In this paper, an adaptive subspace detector for SDC (SDC-ASD) background which deals with the clutter and the noise separately is proposed. The SDC-ASD designs the test statistic by... (More)
- In this paper, the problem of detecting target in system-dependent clutter (SDC) background with a single observation from the test cell is researched. Classical detectors, such as the generalized likelihood ratio detectors (GLRDs) and the adaptive matched filters (AMFs), etc., usually deal with the clutter and the noise as a whole. The low rank detectors (LRDs) make use of the low rank property of the clutter to improve the detection performance. However, the performance of LRDs degrades when the signal is not orthogonal with respect to (w.r.t.) the clutter. In this paper, an adaptive subspace detector for SDC (SDC-ASD) background which deals with the clutter and the noise separately is proposed. The SDC-ASD designs the test statistic by replacing the signal and the clutter covariance matrix with their maximum likelihood estimations (MLEs). Its theoretical false alarm probability and detection probability are analytically deduced. Analytical results show that the test statistic has the form of non-central distribution. Besides, it is shown that the SDC-ASD has constant false alarm rate (CFAR) performance w.r.t. the clutter and the noise. Numerical experiments are provided to validate the detection performance of the SDC-ASD in dealing with the target detection in SDC background. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/8410104
- author
- Lei, Shiwen LU ; Zhao, Zhiqin ; Nie, Zaiping and Liu, Qing-Huo
- organization
- publishing date
- 2014
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Adaptive subspace detector (ASD), constant false alarm rate (CFAR), system-dependent clutter (SDC) background, target detection.
- in
- IEEE Transactions on Signal Processing
- volume
- 62
- issue
- 20
- pages
- 5260 - 5269
- publisher
- IEEE - Institute of Electrical and Electronics Engineers Inc.
- external identifiers
-
- scopus:84959575582
- ISSN
- 1053-587X
- DOI
- 10.1109/TSP.2014.2348952
- language
- English
- LU publication?
- yes
- id
- a0530fb1-fe8e-49ae-9f9d-a26445e03d9f (old id 8410104)
- date added to LUP
- 2016-04-01 10:36:49
- date last changed
- 2022-02-02 19:25:59
@article{a0530fb1-fe8e-49ae-9f9d-a26445e03d9f,
abstract = {{In this paper, the problem of detecting target in system-dependent clutter (SDC) background with a single observation from the test cell is researched. Classical detectors, such as the generalized likelihood ratio detectors (GLRDs) and the adaptive matched filters (AMFs), etc., usually deal with the clutter and the noise as a whole. The low rank detectors (LRDs) make use of the low rank property of the clutter to improve the detection performance. However, the performance of LRDs degrades when the signal is not orthogonal with respect to (w.r.t.) the clutter. In this paper, an adaptive subspace detector for SDC (SDC-ASD) background which deals with the clutter and the noise separately is proposed. The SDC-ASD designs the test statistic by replacing the signal and the clutter covariance matrix with their maximum likelihood estimations (MLEs). Its theoretical false alarm probability and detection probability are analytically deduced. Analytical results show that the test statistic has the form of non-central distribution. Besides, it is shown that the SDC-ASD has constant false alarm rate (CFAR) performance w.r.t. the clutter and the noise. Numerical experiments are provided to validate the detection performance of the SDC-ASD in dealing with the target detection in SDC background.}},
author = {{Lei, Shiwen and Zhao, Zhiqin and Nie, Zaiping and Liu, Qing-Huo}},
issn = {{1053-587X}},
keywords = {{Adaptive subspace detector (ASD); constant false alarm rate (CFAR); system-dependent clutter (SDC) background; target detection.}},
language = {{eng}},
number = {{20}},
pages = {{5260--5269}},
publisher = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}},
series = {{IEEE Transactions on Signal Processing}},
title = {{A CFAR Adaptive Subspace Detector Based on a Single Observation in System-Dependent Clutter Background}},
url = {{http://dx.doi.org/10.1109/TSP.2014.2348952}},
doi = {{10.1109/TSP.2014.2348952}},
volume = {{62}},
year = {{2014}},
}