用差分法处理相关性测量数据方法探讨

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 Correlated Measurement Data Using Differential Method

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.