多测速系统测量数据差分非线性求解及应用

Nonlinear Algorithm and Application of Multi-Velocity Measuring Data

多测速系统是航天测控网的重要组成部分,通过多站联测实现外空间飞行目标的高精度测速。针对试验任务中以两套测量体制联测距离和变化率为对象,建立测速系统测量数据非线性计算方法。计算结果显示,该方法可有效地消除跟踪测量过程距离和变化率数据部分系统误差和随机误差,是克服相关序列相关性的有效方法,提高了数据处理精度。

As an important part of TT＆C network, multi-velocity measurement system can achieve the high-accuracy velocity measuring of outer space targets through joint measuring with multi-station. The nonlinear method for is established aiming at the distance and rata of change jointly measured with two sets of measuring system in test mission. The calculation result of actual measurement indicates that the method eliminates the systemic error and random error of distance and rate of change during tracking measurement, which is an effective way to overcome the correlation between related sequences, and consequently can improve the accuracy of data processing.