1、7.1 GPS测量主要误差测量主要误差分类分类7.2 与与信号传播信号传播有关的误差有关的误差7.3 与与卫星卫星有关的误差有关的误差7.4 与与接收机接收机有关的误差有关的误差7.5 其他其他误差误差7.2 与与信号传播信号传播有关的误差有关的误差7.2 与与信号传播信号传播有关的误差有关的误差2d28.40SeionsNfddSesN7.2 与与信号传播信号传播有关的误差有关的误差7.2 与与信号传播信号传播有关的误差有关的误差2fAdion222211/fAPfAPAsNSed28.40-令2211ioniondPdP2211ioniondPdP)(54573.2 )(2112112PP
2、PdPPddionionionPPPP54573.254573.1212222221111)()(fANfAN2122212221112221222222211121)()()()(fffNNfAfffNNfA212222222212221111)()fffNfffN()(2cosPgTtPADCT3030nmnnmnPAPpP15)291cos(6.11PopPmUTtUTncV tttdtnnncdtncdtncVdt32)1()1()1(1)1(1 sttdsntccdtntcdtnc)1()1()1(1dsnVStrop)1(610)1(nN241806.776.77TeTPNNNwd
3、zHzzHzGAOAGAsin2)2cos1(sin)2cos1(zH sin42tUSdcos)cos(taUSr)cos(tUS212)cos21(aa)cos1(sinarctanaa限ZhrtaniTZiYiXidCnml0id0sbbddsbbdd)()()(1212ijijijtttSD22CVffffSssfCVffSs10210835.02rRCff11 22ff10210284.5ffffs102210449.4ECaetsin22EinEetsin7.2289)ns(EinjjjjejejjjZYXttZYX0000000)()()(1uuujjjjjjjZZZYYYXXX)(222zyxzyxvr