卫星发射外测精度分析的EMBET方法

A Research on the Way of EMBET in the Tracking Systems' Accuracy-analysis During Satellite Launch

过去的精度鉴定基准几乎都是用弹道摄像机 ,在同一坐标系下点对点比较 ,缺点是对气象条件要求较高 (晴朗的夜晚 ) ,往往周期长 ,且高精度的测量设备本身就无法进行精度鉴定。而EMBET方法用于精度鉴定 ,它不需要基准 ,只要测量元素大于 3,用测量数据序列就可同时计算出弹道及其测量元素的诸多系统误差。文章给出了有关设备测量元素的误差模型和典型设备组合的EMBET方法 ,且已成功地用于卫星发射的精度分析中。

In the past, the criterion for calibration has almost invariably been the stellar oriented ballistic camera,the method is a point to point comparison on the identical coordinate system. Deficiencies is follows: The request of weather is severe(cloudless night); The period is often long; the measure equipment of high precision can't be calibrated. While EMBET methods is used in calibration, it does not need criterion and it demands only that the measure elements is larger than 3,and the trajectory and many system errors of the measure elements can be simultaneously calculated with the measure data sequences. The error models of related equipments' measure elements and the EMBET of typical equipment group are given. The EMBET method is successfully used in Accuracy-analysis of Satellite Launch.