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空间非合作目标双行轨道根数快速生成算法

DOI: 10.11728/cjss2014.03.319, PP. 319-326

Keywords: 空间目标监视,双行轨道根数,无奇异变换,自适应遗忘因子

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Abstract:

针对空间目标TLE拟合过程中可能出现的奇点问题,提出了基于无奇异变换的空间目标双行轨道根数(TLE)生成算法.为提高观测平台对空间目标状态估计效率,提出带有自适应遗忘因子的非线性最小二乘递推算法,利用最速下降法在线修正遗忘因子,使得估计值有较快的跟踪速度和较小的稳态误差.仿真结果表明,该TLE生成算法的数据处理速度和轨道预报误差满足要求,可用于低轨目标的天基监视.

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