An Indoor Moving Target Relocation Method Based on Interferometric Phase of Dual-Channel UAV-Mounted Through-the-Wall Radar

被引：0
作者：
Qu, Xiaodong [1 ,2 ]
Zhang, Hao [1 ,2 ]
Liu, Feiyang [1 ]
Sun, Xiaolong [1 ]
Ma, Zeyu [1 ,2 ]
Yang, Xiaopeng [1 ,2 ]
Lan, Tian [1 ]
机构：
[1] Beijing Inst Technol, Sch Informat & Elect, Beijing 100081, Peoples R China
[2] Beijing Inst Technol, Yantze Delta Reg Acad, Jiaxing 314000, Peoples R China
来源：
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT | 2025年 / 74卷
关键词：
Azimuth; Vectors; Transmitting antennas; Receiving antennas; Estimation; Radar; Autonomous aerial vehicles; Antenna arrays; Radar imaging; Doppler radar; Dual channel; interferometric phase; moving target localization; through-the-wall radar (TWR); uncrewed aerial vehicle (UAV) mounted; BEAM INTERFEROMETRY; RADIAL-VELOCITY;
D O I：
10.1109/TIM.2025.3553937
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Uncrewed aerial vehicle (UAV)-mounted through-the-wall radar (TWR) can penetrate buildings and achieve indoor moving target detection. However, the unknown radial velocity of the moving target leads to the Doppler centroid shift and consequently deviation in the radar image. The real azimuth location cannot be obtained directly from radar images. Therefore, this article proposes a moving target azimuth relocation method based on UAV-mounted TWR. In this method, first, the dual-channel phase history of the moving target in the range-compressed domain is extracted based on the keystone transform and azimuthal noncoherent accumulation. Second, the interferometric phase is then obtained and fit using least-square method. Third, an optimization problem regarding to moving the target azimuth location is constructed and solved. Numerical simulation, field, and comparative experiments validate the effectiveness of the proposed method.
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页数：13
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