只测角单站被动式高精度定位方法

被引:3
作者
王晓华
敬忠良
李锋
机构
[1] 上海交通大学航空航天信息与控制研究所
[2] 上海交通大学航空航天信息与控制研究所 上海
[3] 上海
关键词
被动定位; 极大似然估计; 轨迹优化;
D O I
10.16183/j.cnki.jsjtu.2002.08.032
中图分类号
V249.12 [自动控制];
学科分类号
081105 ;
摘要
讨论了只测角被动式单目标环境下固定发射源的位置可观测性条件 ,并进行理论分析 ,给出定位精度的 Cramer- Rao下界 ,提出以最大化 Fisher信息矩阵行列式为原则来优化侦察机轨迹 ,改善目标的定位精度 .建立解此最优问题的模型 ,研究了利用计算机求解最优轨迹的方法 .基于极大似然估计 ,提出了高精度被动目标定位方法 .仿真结果表明 ,该方法可以显著地提高目标的定位精度 ,并使其逼近 Cramer- Rao下界
引用
收藏
页码:1187 / 1190
页数:4
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