空天预警研究学报2023，Vol.37Issue(4)：279-284,6.DOI:10.3969/j.issn.2097-180X.2023.04.009
一种基于海杂波非均匀性度量的目标检测方法
A target detection method based on non-homogeneity measure of sea clutter
谢锦生 1杨雪亚 1王金峰 1徐瑞昆 1张学森1
作者信息
- 1. 中国电子科技集团公司第三十八研究所,合肥 230088||孔径阵列与空间探测安徽省重点实验室,合肥 230088
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摘要
Abstract
The non-homogeneous and non-stationary characteristics of sea clutter make the traditional adap-tive filtering method unable to obtain homogeneous samples following complex Gaussian distribution,and the de-tection performance significantly reduced.In view of the above problem,this paper proposes a variable scale hy-brid target detection method based on non-homogeneity measure.In this method,the advantages of TDS and SDS are combined;the sample non-homogeneity calculated by the generalized inner product is used to screen the ho-mogeneous sample,and then,the sample is selected by using the generalized inner product a second time;the mixed weight of the covariance matrix of the whole detection scene is adjusted adaptively to improve the estima-tion accuracy of the clutter covariance matrix.The actual measured results show that the proposed method can ef-fectively reduce the problem of more false alarms of detection in non-homogeneous environment due to the influ-ence of temperature,humidity,etc.,and can also improve the clutter suppression performance while keeping rela-tive less energy loss of the target signal.关键词
自适应匹配滤波/可变尺度混合/广义内积/非均匀检测Key words
adaptive matched filter/variable scale hybrid/generalized inner product/non-homogeneity detection分类
信息技术与安全科学引用本文复制引用
谢锦生,杨雪亚,王金峰,徐瑞昆,张学森..一种基于海杂波非均匀性度量的目标检测方法[J].空天预警研究学报,2023,37(4):279-284,6.
