摘要
针对卫星导航模拟器的低轨用户轨迹仿真问题,分析并研究了低轨用户力学模型、坐标转换方法以及数值积分策略,提出了一套基于动力学的低轨用户轨迹仿真算法。利用该算法对典型动力模型设定下的低轨用户进行轨迹仿真,并完成与成熟商用软件仿真结果的对比与结果分析。结果显示,在保证长时间连续稳定运行的前提下,该算法实现了低轨用户的轨迹仿真且与STK10.0仿真结果精度相当。
In order to solve the problem of Low Earth Orbit(LEO) user track simulation of satellite navigation simulator,the LEO user dynamic model,coordinate system transformation and numerical integration schemes are analyzed and studied,and then a LEO user track simulation algorithm based on dynamics is presented.The LEO user track in the typical dynamic model is simulated using this algorithm,and the obtained results and the simulation results obtained using mature commercial software are compared and analyzed.The results show that this algorithm achieves the high simulation accuracy comparable to that of STK10.0 while ensuring the long time continuous and stable operation.
作者
李笛
孙腾达
LI Di;SUN Tengda(State Key Laboratory of Satellite Navigation System and Equipment Technology,Shijiazhuang 050081,China)
出处
《无线电工程》
2020年第8期672-677,共6页
Radio Engineering
关键词
卫星导航模拟器
低轨用户
轨迹仿真
动力学
高精度
satellite navigation simulator
LEO user
track simulation
dynamics
high accura
