| 基于相似性度量的非正侧阵杂波谱补偿方法 |
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| 引用本文： | 姜晖,廖桂生.基于相似性度量的非正侧阵杂波谱补偿方法[J].电波科学学报,2009,24(6). |
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| 作者姓名： | 姜晖 廖桂生 |
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| 作者单位： | 西安电子科技大学雷达信号处理国家重点实验室,陕西,西安,710071 |
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| 基金项目： | 国家杰出青年科学基金项目，国家自然科学基金资助项目，教育部长江学者和创新团队支持计划 |
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| 摘 要： | 在非正侧阵雷达中的杂波谱随距离发生变化,造成杂波统计特性估计不准确,空时二维自适应处理中滤波器的杂波凹口变宽.为了克服这个难题,根据杂波模型提出了一种基于相似性度量的谱补偿方法.该方法首先将待检单元的导向矢量与相邻单元的导向矢量进行内积,作为谱结构相似性的度量,然后依此度量值,对接收数据的杂波协方差矩阵进行加权处理,最后用传统的空时自适应算法进行杂波抑制.仿真证明了该方法可以有效地消除杂波谱的非平稳性,提高雷达抑制杂波的性能.
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| 关 键 词： | 相似性度量 非正侧视雷达 杂波谱补偿 |
An approach for clutter spectrum compensation based on similar measure |
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| JIANG Hui,LIAO Gui-sheng.An approach for clutter spectrum compensation based on similar measure[J].Chinese Journal of Radio Science,2009,24(6). |
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| Authors: | JIANG Hui LIAO Gui-sheng |
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| Affiliation: | JIANG Hui LIAO Gui-sheng (National Key Lab. of Radar Signal Processing,Xidian University,Xi'an Shaanxi 710071,China) |
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| Abstract: | The clutter spectrum depends on range in non-sidelooking arrays,which leads to inaccuracy estimation of clutter statistical property and a wide clutter notch in space-time adaptive processing (STAP). According to clutter model,we present a method for compensation of clutter spectrum base on similar measure. The similarity measure for spectrum structure is described by a set of values defined by the inner product between the steering vector of range bin under test and of adjacent range bins. The clutter cova... |
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| Keywords: | similar measure non-sidelooking radar clutter spectrum compensation |
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