多IRST自适应协同定位技术研究  

On Adaptive Multi-IRST Collaborative Localization Technology

作　　者：张磊[1] 刘莎 王合龙[1] 程小亮[1] ZHANG Lei;LIU Sha;WANG Helong;CHENG Xiaoliang(Luoyang Institute of Electro-Optical Equipment AVIC ,Luoyang 471000 China;Air Force Equipment Program Center, Beijing 100000 China)

机构地区：[1]中国航空工业集团公司洛阳电光设备研究所,河南洛阳471000 [2]空装项目中心,北京100000

出　　处：《电光与控制》2024年第4期103-108,共6页Electronics Optics & Control

摘　　要：为解决传统单红外搜索与跟踪(IRST)系统观测度不足,无法提供目标全维态势信息的问题,提出了基于几何精度因子(GDOP)的多IRST自适应协同定位技术。其核心思想为对多IRST进行双机组合配对,依据配对组合的GDOP值构造面向定位精度的信息类函数,进而确定联邦滤波信息分配系数,最后基于自适应联邦滤波算法解决双IRST配对组合局部估计的全局信息融合问题,得到目标的精确位置信息。通过仿真结果证明,所提算法定位精度高、可靠性强,同时,可保证全局定位结果的精确性及稳定性。The traditional single Infrared Search and Tracking(IRST)system lacks full coverage of observation so it cannot provide all-dimensional situation information of the target.To solve the problem,an adaptive multi-IRST collaborative localization technology based on Geometric Dilution of Precision(GDOP)is proposed.Its core idea is to perform dual-aircraft pairing combination on multiple IRSTs and to construct an information function oriented to localization accuracy based on the GDOP value of the pairing combination and then to determine the federal filter information assignment coefficient.Finally the problem of global information fusion of local estimation of dual-IRST pairing combination is solved based on the adaptive UKF federal filter algorithm and the accurate location information of the target is obtained.The simulation results have proved that the proposed algorithm has high positioning accuracy and strong reliability.Meanwhile it can ensure the accuracy and stability of the global positioning result.

关 键 词：交叉定位 几何精度因子 当前统计模型 联邦滤波 

分 类 号：V248.1[航空宇航科学与技术—飞行器设计]