用差分法处理相关性测量数据方法探讨  

Processing of Correlated Measurement Data Using Differential Method

作　　者：张锦斌[1] 马万权[1] 

机构地区：[1]中国电子科技集团公司第五十四研究所,石家庄050081

出　　处：《飞行器测控学报》2014年第1期44-51,共8页Journal of Spacecraft TT&C Technology

摘　　要：当测量参数(或称测量元素)具有强相关性时,运用测量求差法解算测量结果,能消除相关性误差因素的影响,获得高精度测量结果,如电影望远镜同帧画幅测量脱靶量。基于此,运用测量方法和数学手段构建一个虚拟的元素相关测量系统,以消除相关性误差因素的影响,同样能获得理想结果。用多台测速雷达组成的系统,可使火炮弹丸空间坐标的测量精度达到毫米量级,从而满足多种火炮立靶密集度的测量精度要求。Processing of measurement data with a differential method minimizes the influence of correlation errors and provides higher accuracy measurement results,e.g.,same-frame picture measurement of miss distance with cine telescope,when measurement parameters （or elements） are highly correlated.Alternatively,a virtual element-correlation measurement system can be constructed with measurement methods and mathematical means to eliminate the negative influence of correlation errors.A system composed of multiple velocity radars yields a millimeter level accuracy for measurement of the spatial coordinates of artillery projectiles and thus meets the measurement accuracy requirements of vertical target density of numerous types of artillery.

关 键 词：虚拟的元素相关测量系统 相关性测量元素 差分法 同帧画幅 脱靶量 立靶密集度 

分 类 号：V556.6[航空宇航科学与技术—人机与环境工程]