交会测量中方向余弦法的优化方法  

Optimization Design of Direction Cosine Algorithm Applied in Intersection Measurement

作　　者：王颖[1] 李佩军[1] 陈佐龙[1] 

机构地区：[1]中国白城兵器试验中心,吉林白城137000

出　　处：《弹箭与制导学报》2015年第6期149-151,共3页Journal of Projectiles,Rockets,Missiles and Guidance

摘　　要：经纬仪交会测量时,常用方向余弦法计算目标坐标。因测角误差,各经纬仪指向目标的射线不相交,计算时有原理性误差。通过分析射线与目标的位置关系及光测设备的测量精度等,提出了用两条射线最短距离的加权值作为目标位置,优化了方向余弦法的计算模型。实测数据验证表明,优化后的方法提高了计算精度,是行之有效的。In view of intersection measurement, direction cosine algorithm is often adopted to calculate coordinates. In fact, because of er- ror of optical equipment, two light rays from them don＇ t intersect at one point ; the direction cosine method is inaccurate in principle. In this paper, through analysis of spatial relationship among rays, target, and measuring accuracy of optical measurement equipment, etc. , the weighted value of the shortest distance was taken as the target coordinate. Tests show that the improved direction cosine method is effec- tive, resulting in higher accuracy.

关 键 词：经纬仪 方向余弦法 交会 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]