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| FMCW车载雷达自适应干扰抑制方法 | |
| 引用本文： | 李阳,王楚媛,陈桥,李枫,胡程. FMCW车载雷达自适应干扰抑制方法[J]. 信号处理, 2021, 37(2): 258-267. DOI: 10.16798/j.issn.1003-0530.2021.02.011 |
| 作者姓名： | 李阳 王楚媛 陈桥 李枫 胡程 |
| 作者单位： | 北京理工大学信息与电子学院雷达技术研究所 |
| 基金项目： | 国家重点研发计划资助（2018YFE0202101，2018YFE0202102，2018YFE0202103）；国家自然科学基金（61701026） |
| 摘 要： | 车载雷达间相互干扰可能会导致传感器灵敏度降低,某些情况下会产生虚警.针对这个问题,本文提出了一种基于粒子群优化和自适应对消的干扰抑制方法.该方法将发射端波形优化及接收端自适应滤波相结合,进一步提高雷达的干扰抑制能力.首先采用粒子群算法进行波形参数优化,在参数约束范围内最小化波形相关性,缓解虚警问题,然后基于正交接收机内... |
| 关 键 词： | 调频连续波雷达 相互干扰 干扰抑制 自适应信号处理 |
| 收稿时间： | 2020-09-08 |
Mutual Interference Suppression Method for FMCW Automotive Radar |
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| Affiliation: | Radar Research Laboratory, School of Information and Electronics, Beijing Institute of TechnologyBeijing Institute of Technology Chongqing Innovation Center |
| Abstract: | Mutual interference between automotive radars may reduce the sensitivity of the sensor, and false alarms may occur sometimes. To solve this problem, this paper proposed an interference suppression method based on particle swarm optimization and adaptive cancellation. This method combines waveform optimization at the transmitter and adaptive filtering at the receiver to further improve the radar's interference suppression capabilities. First, the particle swarm algorithm is used to optimize the waveform parameters to minimize the waveform similarity within the parameter constraints and alleviate the false alarm problem. Then, based on the characteristics that the interference is conjugate correlated in the positive and negative spectrum and the target is only in the positive half of the spectrum, obtain the optimal filter through least mean square iteration to achieve adaptive interference cancellation. The simulation verifies that this method has a good suppression effect for many kinds of interferences. |
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