基于SGP4模型的卫星轨道计算

摘要

以TERRA卫星为例介绍两行元素轨道报的格式,采用SGP4模型计算TERRA卫星的卫星轨道,即卫星的实时位置和速度;并计算卫星相对于北京地面站的方位角和高度角.最后利用STK软件的模拟结果进行精度评价.结果表明,计算结果精度较高,具有实际应用价值.%The paper uses TERRA satellite as an example to introduce the two-line element set format, and calculates the satellite orbit using SGP4 model,that is satellite position and velocity;then calculates the satellite azimuth and elevation angle. Finally,gives the precision evaluation using STK software's simulation results. The results show that, the calculation results have high precision,which has practical application value.