yuma造句

• Thirdly , an ideal satellite orbit is simulated , and on this foundation , we establish some typical simulation and testing circumstances . lastly , after simulation in the simulation and testing circumstances , we compare the performance of ukf and ekf . and then , based on the outdoor experiment of the vehicle , an analysis and contrast between our simulation results and commercial data process software is carried out , and the conclusion is obtained
  首先在第三章提出的目标运动模型的基础上建立了系统状态方程;其次简要分析了卫星导航系统中的各类误差,建立了基于伪距观测量的系统观测模型;第四节利用yuma格式历书数据模拟了未受摄动影响的卫星轨道,并在此基础上建立了几种典型的动态仿真测试环境;第五节为仿真分析和比较,先对ukf算法和ekf算法在动态仿真测试环境中进行了仿真比较,然后针对外场试验,对非线性滤波获得的定位结果与商业软件进行了分析比较,并得出结论。