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作 者:吴松林[1] 陈体英[2] 杨辉跃[3] 沈艳林[3]
机构地区:[1]后勤工程学院基础部,重庆401311 [2]西南大学附属中学数学组,重庆400715 [3]后勤工程学院后勤信息与军事物流工程系,重庆401311
出 处:《后勤工程学院学报》2013年第2期74-81,共8页Journal of Logistical Engineering University
摘 要:为了对无源探测卫星系统的定轨方式和精度进行定量分析,通过坐标转换、受力分析、拟合、最小二乘法、微分方程数值解法与误差分析等方法,建立了基于卫星无源探测的空间飞行器在主动段的交汇定位优化模型和运动方程模型。基于模拟数据和模型,给出了卫星和空间飞行器的轨道曲线以及卫星的系统误差。经过系统误差修正,空间飞行器的估计轨道误差仅为7.582 1 m。For quantitative research on location and error of satellite system, optimization model of intersection orbit location and motion equation model for space vehicle in active period based on passive detection satellite are comprehensively built by some mathematical methods, which involves coordinate conversion, force analysis, fitting, least square method, numerical solution of dif- ferential equation, and error analysis method. Then the satellite system' s error and the space vehicle' s orbit are estimated. Based on simulation data and these models, the orbit curves of satellite and other space vehicle and the system error of satellite are given. Through system error correction, the space vehicle' s track error is estimated only 7.582 1 m. These models are of important theoreti- cal and practical significance for the location of space vehicle.
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