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主要介绍了高动态GPS观测数据的仿真情况,分析了GPS观测值仿真的意义、原理、及流程,重点讨论了各个模块系统的功能及采用的数学模型。利用编制的仿真软件仿真了武汉地区的GPS观测值,并与仿真的导航电文进行单点定位计算,算例结果表明本文方法的正确性和可靠性,能满足不同层次人员对GPS仿真观测值的需要。

An efficient method of precise kinematic GPS measurement simulation is introduced in this paper.The signification,principle,and flow chart used in GPS measurement simulation are analyzed.Especially,the function and mathematical models of each module are discussed.Then the simulation of GPS observation of Wuhan district is performed.The numerical results show that the simulation method presented in this paper is validity and reliability.Therefore,the simulated GPS observations can meet various demands.