针对高精度测速雷达系统跟踪测量数据所存在的模型误差问题,分析其距离和变化率测速测元数据的模型误差对航天器飞行弹道参数确定的影响情况,建立了相应模型误差引发弹道参数误差的计算分析模型。通过仿真计算及定量分析,得出模型误差引发的目标弹道参数确定的误差范围及趋势。此方法可为飞行目标的弹道参数确定提供有效的分析手段。

In view of model error occurred in tracking and measuring data of high-precision velocity measurement radar system, the model for calculating the error of trajectory parameters was established so as to analyze influence of the model error of the measurement data of distance and change rate on parameters of spacecraft flight trajectory. The error range and trend of target trajectory parameters due to the model error were obtained from simulation calculation and quantitative analysis. The method is effective for determining trajectory parameter of flying target.