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arXiv 2407.04746eess.SP
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基于距离-多普勒域补偿与对消的无人机载雷达动目标检测方法

Moving Target Detection Method Based on Range? Doppler Domain Compensation and Cancellation for UAV-Mounted Radar

Xiaodong Qu, Xiaolong Sun, Feiyang Liu, Hao Zhang, Shichao Zhong, Xiaopeng Yang

AI总结:

针对无人机载穿墙雷达中强非平稳杂波影响动目标检测的问题,提出距离-多普勒域双通道相位补偿、对消及滤波成像方法,并通过仿真和无人机实验验证其有效性。

摘要:

将无人机(UAV)与穿墙雷达相结合,可实现复杂建筑场景中的运动目标检测。然而,障碍物和静态物体产生的杂波通常更强且具有非平稳性,从而对运动目标检测造成严重影响。针对这一问题,本文提出了一种用于无人机载双通道雷达、基于距离-多普勒域补偿与对消的运动目标检测方法。在所提方法中,首先在距离-多普勒域对双通道进行相位补偿,随后利用对消实现粗略的杂波抑制;接着,根据对消结果和原始回波构造滤波器,用于进一步抑制静止杂波;最后,采用失配成像对运动目标进行聚焦以完成检测。仿真和基于无人机的实验结果均得到分析,验证了所提方法的有效性与实用性。

英文摘要:

Combining unmanned aerial vehicle (UAV) with through-the-wall radar can realize moving targets detection in complex building scenes. However, clutters generated by obstacles and static objects are always stronger and non-stationary, which results in heavy impacts on moving targets detection. To address this issue, this paper proposes a moving target detection method based on Range-Doppler domain compensation and cancellation for UAV mounted dual channel radar. In the proposed method, phase compensation is performed on the dual channel in range-Doppler domain and then cancellation is utilized to achieve roughly clutters suppression. Next, a filter is constructed based on the cancellation result and the raw echoes, which is used to suppress stationary clutter furthermore. Finally, mismatch imaging is used to focus moving target for detection. Both simulation and UAV-based experiment results are analyzed to verify the efficacy and practicability of the proposed method.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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