对数正态纹理距离相关性辅助的海杂波背景雷达目标检测方法

薛健; 郭妍

doi:10.11999/JEIT240123

对数正态纹理距离相关性辅助的海杂波背景雷达目标检测方法

doi: 10.11999/JEIT240123

薛健^,,
郭妍

西安邮电大学通信与信息工程学院西安 710121

基金项目: 国家自然科学基金(62201455)，陕西省科学技术协会青年人才托举计划(20230112)

详细信息

作者简介:
薛健：男，副教授，研究方向为雷达杂波抑制、雷达目标检测分类识别等

郭妍：女，硕士生，研究方向为雷达杂波特性感知及目标检测

通讯作者:
薛健　jxue@xupt.edu.cn

中图分类号: TN959.72
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- 被引次数: 0
出版历程
- 收稿日期: 2024-02-29
- 修回日期: 2024-06-18
- 网络出版日期: 2024-06-27
- 刊出日期: 2024-09-26

Radar Target Detection Aided by Log-Normal Texture Range Correlation in Sea Clutter

XUE Jian^,,
GUO Yan

School of Communications and Information Engineering, Xi’an University of Posts and Telecommunications, Xi’an 710121, China

Funds: The National Natural Science Foundation of China (62201455), The Young Talent Fund of Association for Science and Technology in Shaanxi, China (20230112)

摘要

摘要: 传统的海杂波背景雷达目标自适应检测器通常假设杂波纹理在距离维上独立同分布，忽略了纹理在距离维的相关性信息。为了改善纹理距离相关海杂波环境下雷达目标自适应检测性能，该文首先将复合高斯海杂波的纹理分量建模为对数正态随机变量，然后基于广义似然比检验提出一种基于均匀对数正态纹理的广义似然比检测器。提出的雷达目标自适应检测器融合了纹理的先验分布知识及其在距离维的相关性信息。仿真和所用实测数据表明，与已有检测方法相比，所提方法对纹理距离相关海杂波背景下的雷达目标具有更高的检测概率。
- 雷达目标检测 /
- 海杂波 /
- 对数正态纹理 /
- 距离相关性
Abstract: The traditional radar adaptive target detectors in sea clutter usually assumes that the clutter texture is independent and identically distributed in the range dimension, ignoring the correlation information of the texture in the range dimension. In order to improve the adaptive detection performance of radar targets in sea clutter with texture range correlation, the texture component of compound Gaussian sea clutter is modeled as a lognormal random variable, and then a generalized likelihood ratio test with homogeneous lognormal texture detector is proposed based on the generalized likelihood ratio test. The proposed detector uses the prior distribution of texture and the correlated information of texture range. The simulation and the measured data beging used show that the detection probability of this detector for radar targets in compound Gaussian sea clutter with texture range correlation is higher than that of the existing detectors.
- Radar target detection /
- Sea clutter /
- Log-normal texture /
- Range correlation

HTML全文

图 1 不同数量纹理辅助数据下检测器检测概率曲线

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图 2 不同参考单元数量下检测器检测概率曲线

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图 3 不同形状参数下检测器检测概率曲线

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图 4 实测海杂波数据功率图及纹理距离相关系数图

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图 5 基于CFC17_011.01的不同参考单元数量下检检测概率曲线

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图 6 基于TFA10_007.02的不同参考单元数量下检检测概率曲线

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