[关键词]
[摘要]
从球面几何的角度入手,提出了一种高精度球面三角定位算法。该算法运算量小,定位速度快,尤其适合于超远距离地面目标的定位。分析表明,目标距离比较远时,球面三角定位要比平面交叉定位的定位误差小得多。目标距离一定时,要使圆概率误差半径最小,侦察站和目标须成等边三角形配置。
[Key word]
[Abstract]
An algorithm of high accuracy spherical triangulation location is proposed which is based on spherical geometry.The algorithm has not only the advantage of low computation load and fast location,but is also quite suitable for very long range target.The location error of spherical triangulation location is analyzed.The result shows the above method has much smaller location error than that of cross location in the plane when the range is long.For a fixed target range in order to minimize the Circular Error Probability(CEP),the receivers and the transmitters must be deployed in the form of an equilateral triangle.
[中图分类号]
TN957.51
[基金项目]
国防预研项目?
