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一种改进的多站AOA/TDOA联合无源定位闭合形式算法
熊健,熊杰
0
(中国西南电子技术研究所,成都 610036)
摘要:
为解决多平台协同外辐射源无源定位问题,提出了基于到达角(Angle of Arrival,AOA)与到达时间差(Time Difference of Arrival,TDOA)的闭合形式定位解算法。在保持两阶段定位闭合形式算法框架不变的前提下,所提算法不仅考虑了AOA与TDOA观测噪声对定位造成的不利影响,同时还缓解了传感器位置不确定引起的定位精度恶化问题。数值仿真结果验证了所提算法的高精度定位性能。
关键词:  外辐射源无源定位  闭合形式算法  到达角  到达时间差  传感器位置不确定
DOI:
基金项目:
An improved passive location closed-form algorithm based on AOAs and TDOAs
XIONG Jian,XIONG Jie
(Southwest China Institute of Electronic Technology,Chengdu 610036,China)
Abstract:
To solve the problem of multi-platform cooperative passive source location,a passive location closed-form algorithm based on the angle of arrival(AOA) and time difference of arrival(TDOA) measurements is proposed.Keeping the two-stage closed-form location algorithm framework unchanged,the proposed algorithm not only takes into accout of the adverse effect caused by the noisy AOA and TDOA observations but also alleviates the positioning accuracy deterioration problem caused by the sensor location uncertainties.Simulation results prove the high-precision positioning performance of the passive location algorithm.
Key words:  passive source location  closed-form algorithm  AOA  TDOA  sensor location uncertainty
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