GLRT Detector of Range-Spread Target in Local Homogeneous Background and Its Performance Analysis

GU Xin-feng; JIAN Tao; HE You; SU Feng; TANG Xiao-ming

doi:10.3969/j.issn.0372-2112.2013.12.008

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GLRT Detector of Range-Spread Target in Local Homogeneous Background and Its Performance Analysis

更新时间：2025-07-16

- GLRT Detector of Range-Spread Target in Local Homogeneous Background and Its Performance Analysis
- Acta Electronica Sinica Vol. 41, Issue 12, Pages: 2367-2373(2013)
- 作者机构：
  
  1. 海军航空工程学院信息融合技术研究所,山东,烟台,264001
  2. 中国卫星海上测控部, 江苏江阴,214431
  4. 中国卫星海上测控部江苏江阴,214431
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China (No.61032001, No.61102166);Program for New Century Excellent Talents in University (No.NCET-11-0872)
- DOI：10.3969/j.issn.0372-2112.2013.12.008
  CLC： V243.2TN957.51
- Published：2013
- 稿件说明：
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GU Xin-feng, JIAN Tao, HE You, et al. GLRT Detector of Range-Spread Target in Local Homogeneous Background and Its Performance Analysis[J]. Acta Electronica Sinica, 2013, 41(12): 2367-2373.
DOI：

GU Xin-feng, JIAN Tao, HE You, et al. GLRT Detector of Range-Spread Target in Local Homogeneous Background and Its Performance Analysis[J]. Acta Electronica Sinica, 2013, 41(12): 2367-2373. DOI： 10.3969/j.issn.0372-2112.2013.12.008.

摘要

在复合高斯杂波满足局部均匀的背景下，对均匀杂波分组模型进行推广，建立了广义杂波分组模型.进一步，利用广义似然比检验（GLRT）原理，提出了距离扩展目标的基于广义杂波分组的GLRT检测器（GCC-GLRT），并推导了检测器虚警概率与检测门限关系的表达式.GCC-GLRT有效地解决了基于均匀杂波分组的GLRT检测器（CC-GLRT）在非均匀杂波分组背景下不具备CFAR特性的问题.仿真结果还表明，对于稀疏散射点目标，在合适的杂波分组情况下，GCC-GLRT能有效克服采用NSDD-GLRT检测器出现的坍塌损失，改善检测器的检测性能.

Abstract

When the compound-Gaussian clutters are cluttered into groups of data with one and the same value of the texture

the homogeneous clutter-clustered model is generalized

and a generalized clutter clustered model is established.Moreover

a generalized likelihood ratio test detector based on the generalized clutter-clustered (GCC-GLRT) is proposed

and the formula relating false alarm probability to detection threshold is deduced.The GCC-GLRT solves the problem that the CC-GLRT is not CFAR in inhomogeneous clutter-clustered background.The simulation results show that the GCC-GLRT can overcome the collapsing loss of the NSDD-GLRT detecting spare scatterers target and improve the detection performance of the detector.

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