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准确预报卫星的过顶信息在军用、民用等多个领域内有重要的应用,文中通过卫星轨道参数来计算卫星星下点轨迹,结合观测到的卫星方位角和仰角等信息反推卫星ECEF坐标,通过局部星下点轨迹吻合与校准建立一种简易模型,使用MATLAB程序进行预测未来某时间段卫星过顶时间,画出卫星星下点轨迹,并计算出卫星过顶的仰角、方位角。本文提出的模型简易有效,无需专业卫星预测软件,仅仅只需MATLAB软件就可以预测指定卫星的过顶情况。
Accurately forecasting overhead information of satellites has important applications in many fields such as military and civil applications. In this paper, satellite orbiting point trajectories are calculated. Based on the observed satellite azimuth and elevation information, the ECEF coordinates , Through a local satellite trajectory match and calibration to establish a simple model, the use of MATLAB program to predict future satellite over time time, draw satellite satellite trajectory, and calculate the satellite elevation elevation, azimuth. The model proposed in this paper is simple and effective, without professional satellite prediction software, just by MATLAB software can predict the over-the-top condition of the designated satellite.