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针对近地空间目标编目探测中,双屏电子篱笆的观测数据关联判断的问题,提出一种基于泰勒展开的径向速率数据关联方法。该方法对关联判断中径向速率这一判别量的计算采用泰勒展开的方式;与传统方法相比,该方法不需要进行地心地固坐标系与地心惯性系坐标转换,也不需要迭代计算初轨根数,具有简单、快速、符合精度需求的特点。在双屏电子篱笆探测LEO(Low Earth Orbit,低地球轨道)cm级空间目标的应用仿真中,该方法与使用初轨确定结果的径向速率方法相比,判断正确率基本相同,但所需计算时间比后者低一个数量级。因此,所述方法的判断效率较高,可为编目探测系统的数据处理流程提供参考。
In order to solve the problem of judging the correlation between the observation data of the two-screen electronic fence in near-space object cataloging, a radial velocity data association method based on Taylor expansion is proposed. This method uses Taylor expansion to calculate the discriminant value of the radial velocity in the correlation judgment. Compared with the traditional method, this method does not need coordinate transformation between the geocentric solid coordinate system and the geocentric inertial system and does not require iterative calculation The number of beginning track, with simple, fast, in line with the characteristics of the accuracy of demand. In the application simulations of LEO (Low Earth Orbit) cm space targets, the accuracy of this method is basically the same as that of the radial velocity method using the results of the initial trajectory determination. However, The calculation time is an order of magnitude lower than the latter. Therefore, the method has higher judgment efficiency and can provide reference for the data processing flow of the cataloging detection system.