GNSS测量数据仿真生成

Simulation and Analysis of GNSS Receiver Data

提出了一种利用IGS数据进行GNSS测量值仿真方法,分析了GNSS的误差模型、仿真流程及数据处理方法;利用Matlab软件仿真实现GNSS观测环境中的各项误差及接收机测量值,并与Sprient模拟器进行同步仿真,通过比较两者数据验证了接收机数据仿真的正确性和精确性,证明了利用该方法进行测量值仿真的有效性及误差模型之间的差异性,满足不同人员对GNSS仿真观测值的需要,为GNSS接收机观测值仿真和软件模拟器模型选用提供参考。

This paper introduces a method for the simulation of GNSS measurements. Models of GNSS errors, procedure of simulation and methods of data processing are discussed in this paper. It produces the observation data of GNSS receivers and various errors with Matlab. Compared with the data generated by the Sprient emulator, validity and accuracy of the simulate data are verified. It meets different needs of GNSS observation values, and provides references for data simulation and soft--emulator development.