| 基于数字电视信号的无源雷达参考通道多径杂波抑制方法 |
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| 作者姓名： | 赵绪锋 李道京 胡烜 |
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| 作者单位： | 1. 中国科学院电子学研究所微波成像技术重点实验室, 北京 100190;
2. 中国科学院大学, 北京 100049 |
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| 基金项目： | 中国科学院电子学研究所创新项目（Y3Z012027）资助 |
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| 摘 要： | 无源雷达利用第三方辐射源信号进行运动目标检测，在现在和未来电子战中具有重要作用。该体制雷达通常采用相关检测方法，但参考信号中常伴随多径杂波干扰。仿真表明，参考通道存在多径杂波干扰使目标检测性能下降，增加虚警并抬升检测基底。抑制多径杂波，提纯参考信号是主要问题。结合数字电视信号特性，给出利用k-前向预测算法抑制多径杂波的原理，基于最小均方误差准则实现滤波。仿真和实测数据处理结果验证了该算法的有效性。
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| 关 键 词： | 无源雷达 参考通道 多径杂波抑制 相关处理 k-前向预测算法 |
| 收稿时间： | 2017-03-01 |
| 修稿时间： | 2017-05-22 |
Multi-path clutter suppression in passive radar reference channel based on digital TV signal |
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| Authors: | ZHAO Xufeng LI Daojing HU Xuan |
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| Institution: | 1. Science and Technology on Microwave Imaging Laboratory, Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | Passive radar, which uses a third-party radiation source signal for moving target detection, plays a vital role in present and future electronic warfare. It usually uses the correlation detection method, but the reference signal is often accompanied by multi-path clutter interference. Simulation results show that multi-path clutter in the reference signal reduces the performance of target detection, increases the false alarm, and lifts the detection base. So suppressing multipath clutter is the main problem. In this paper, the principle of suppressing multipath clutter using k-forward prediction algorithm is given, and the filtering is realized based on least mean square error criterion. The simulation and real-life data results confirm the effectiveness of the proposed algorithm. |
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| Keywords: | passive radar reference channel multi-path clutter suppression correlation processing k-forward prediction algorithm |
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