GPS测量的误差及影响

The error and affection of GPS measurement

结合GPS定位技术在工程测量中的应用实例,介绍了GPS定位系统的组成,从卫星、信号传播、观测与接收设备等方面分析了GPS测量的误差来源和影响,从而消除或削弱它们对测量结果产生的重大影响。

Combined with the application of GPS location in project measurement, it introduces the component of GPS location system, and analyses the error source and affection of GPS measurement, to dispel or decrease the affection of them to measuring effect.