雷达科学与技术2025，Vol.23Issue(1)：48-56,66,10.DOI:10.3969/j.issn.1672-2337.2025.01.005
中继收发器辅助的单站目标定位算法
Single-Station Target Localization Algorithm Assisted by Transceivers
摘要
Abstract
The existing passive localization closed-form algorithms all assume a line-of-sight(LOS)environment and cannot be directly applied to scenarios such as low-altitude unmanned aerial vehicle(UAV)target localization in urban environments with obstructions.Additionally,the non-line-of-sight(NLOS)optimization localization algorithms have lower computational efficiency.To address these issues,the single-station target localization assisted by transcei-vers is investigated.The transceivers are introduced to forward target signals,and two paths are constructed to avoid obstruction problems.A closed-form algorithm is proposed to determine the unknown target location by considering the transceiver and receiver position errors.Firstly,the sensor positions are corrected by using the additional information from the propagation path of the calibrated target-transceiver-observation station.Subsequently,based on the observa-tion information obtained from the unknown target-transceiver-observation station,pseudo-linear equations are constructed by introducing additional variables,and a rough position estimation is provided based on the weighted least square tech-nique.Finally,the matrix equation is reconstructed by using the nonlinear relationships between the target position and the extra variables,and the final estimated solution is provided.Theoretical analysis and simulation results show that the proposed algorithm can achieve the Cramer-Rao lower bound(CRLB)under moderate measurement and position errors.关键词
中继收发器/位置误差/校准目标/闭式算法/克拉美罗下界Key words
transceivers/position errors/calibration object/closed-form algorithm/Cramer-Rao lower bound(CRLB)分类
电子信息工程引用本文复制引用
陈荣鑫,孙霆,王威,王刚..中继收发器辅助的单站目标定位算法[J].雷达科学与技术,2025,23(1):48-56,66,10.基金项目
陕西省自然科学基础研究计划资助项目(No.2023-JC-QN-0743) （No.2023-JC-QN-0743）
中央高校基本科研业务费专项资金资助(No.300102243101) （No.300102243101）
