一种提高双基地雷达定位精度的方法  

Efficient Approach to Enhance GDOP of Bistatic Radar

作　　者：冯成[1] 王荫槐[1] 陈光远[1] 

机构地区：[1]南京电子技术研究所,江苏南京210039

出　　处：《计算机仿真》2015年第4期5-8,共4页Computer Simulation

摘　　要：在T/R-R型双基地雷达性能优化的研究中,为了进一步提高雷达系统的定位精度,研究各测量子集的定位精度随着目标-雷达相对位置的变化情况。根据雷达的定位精度和雷达-目标的相对位置关系,推导出雷达测量精度的动态表达式,并对每个测量子集按精度进行最优加权,从而得到最优权值计算公式,并计算了固定权系数加权平均法和动态加权融合法所能达到的定位精度,分析了定位精度几何稀释,仿真结果表明定位精度有很大的提高。In order to improve the accuracy of radar localization system, this paper researches the positioning accuracy of each subset with the c - hanges in the relative position of the radar based on T/R - R type bistatic radar. According to the position accuracy of the radar and radar - the relative position of the target, the radar dynamic ex- pression is derived. Based on accuracy, each subset is optimally weighted and the best weight calculation formula is obtained, This paper calculates positioning accuracy based on fixed weighted fusion algorithm and dynamic weighted fusion algorithm, then analyzes GDOP of the two algorithms. Simulation results show that the positioning accuracy is greatly improved.

关 键 词：T/R-R型雷达 定位精度几何稀释 动态加权融合算法 

分 类 号：TN955[电子电信—信号与信息处理]