Some formulae were given to compute all correlative quantities. With regard to the course of data processing beforehand, the thesis focuses on outliers eliminating technology because of outlier increasing acutely of high-elevation tracking (approaches 10-20%).
针对高仰角跟星时野值出现几率极高(有时多达10～20％)的现象，数据预处理方面重点研究了野值剔除技术。
参考来源 - 地平式光测跟星系统天顶盲区及跟踪算法研究·2,447,543篇论文数据，部分数据来源于NoteExpress
聚类方式的改进不仅增加了算法的局部寻优能力，有效地减少了计算的复杂度，而且还具备一定的野值剔除能力。
The improvement of clustering can strengthen the algorithms local optimization capability and reduce the computation complexity considerably while eliminating some outliers.
对于测量数据常带有误差偏大的异常值的情况，采用基于弹道参数的数据检择算法，实现了对长时间有相关特性的成片野值的剔除。
In the occasion of too large abnormal values in measurement data, the data matching check algorithm based on trajectory parameters is used to remove the outliers of long stretches.
剔除并补正了飞行实验数据中的野值； 设计了一个低通滤波器来滤除数据中的高频噪声； 用中心插值演算法对数据二次平滑。
Then a low pass filter is designed to filter high - frequency noise in data. and smooth data again by means of central interpolation algorithm ;
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