| 双基机载正侧视雷达杂波谱距离依赖性分析与补偿 |
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| 引用本文： | 曲毅,廖桂生,姜晖,朱圣棋.双基机载正侧视雷达杂波谱距离依赖性分析与补偿[J].数据采集与处理,2009,24(3). |
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| 作者姓名： | 曲毅 廖桂生 姜晖 朱圣棋 |
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| 作者单位： | 1. 西安电子科技大学雷达信号处理国家重点实验室,西安,710071;武警工程学院通信工程系,西安,710086
2. 西安电子科技大学雷达信号处理国家重点实验室,西安,710071 |
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| 基金项目： | 国家自然科学基金，国家杰出青年科学基金 |
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| 摘 要： | 针对垂直和水平基线的双基机载正侧视雷达杂波谱的距离依赖性进行了理论分析和仿真,给出了杂波多普勒频率随距离变化的解析公式,并根据该公式采用谱搬移方法对水平基线的杂波谱进行了补偿.理论分析和仿真表明:在垂直基线的双基系统中,同一距离单元的杂波多普勒频率和空间角频率存在线性关系,杂波谱在主瓣内有较好的重合;水平基线正侧视雷达的杂波谱在主瓣内较宽.同时仿真还证明,采用谱搬移方法可以有效减轻双基杂波谱随距离变化对空时二维自适应处理性能的影响.
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| 关 键 词： | 双基机载雷达 杂波抑制 空时自适应处理 谱补偿 距离依赖 |
Range Dependence Analysis and Compensation of Clutter Spectrum in Bistatic Airborne Sidelooking Radar |
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| Qu Yi,Liao Gui-sheng,Jiang Hui,Zhu Sheng-qi.Range Dependence Analysis and Compensation of Clutter Spectrum in Bistatic Airborne Sidelooking Radar[J].Journal of Data Acquisition & Processing,2009,24(3). |
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| Authors: | Qu Yi Liao Gui-sheng Jiang Hui Zhu Sheng-qi |
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| Affiliation: | Qu Yi~(1,2),Liao Guisheng~1,Jiang Hui~1,Zhu Shengqi~1 (1.National Key Lab of Radar Signal Processing,Xidian University,Xi'an,710071,China,2.Department of Communication Engineering,College of Armed Police Force,710086,China) |
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| Abstract: | The range dependence for clutter spectrum is theoretically analyzed and simulated in bistatic airborne sidelooking radar with the vertical and horizontal baselines.And two analytical formulas are given to show the relationship between Doppler frequency and the range.According to the formulas,the spectrum compensation via the Doppler warping method isperformed in the horizontal baseline system.The analysis and simulations show that in the vertical baseline system the clutter trajectory in a given range bin e... |
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| Keywords: | bistatic airborne radar clutter suppression space time adaptive processing spectrum compensation range dependence |
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