论文部分内容阅读
在组合导航系统的实际应用中，由于系统间通信、计算 和卫星钟差等造成的时间同步问题已经越来越引起人们的关注。文章以INS/GPS(平台惯导/G PS )组合导航系统为例，研究了该组合系统中GPS的时间延迟对惯导系统初始对准各状态量的影 响机理；仿真结果表明，在运载器做圆周运动时，时间延迟会导致错误的方位角估计。
In the practical application of integrated navigation system, the problem of time synchronization caused by inter-system communication, calculation and satellite clock error has drawn more and more attention. Taking INS / GPS integrated navigation system as an example, the paper studies the mechanism of GPS time delay in initializing alignment of inertial navigation system in this system. The simulation results show that, When doing circular motions, time delays can lead to wrong azimuth estimates.