提出了基于PPP技术估计接收机P1-P2码偏差的方法,并对全球分布IGS跟踪站的P1-P2码偏差进行了估计。结果表明,这种方法获取的P1-P2码偏差精度在中高纬度地区优于1dm,在低纬度地区为1~2dm。
The method for estimating receiver P1-P2 DCB(Differential Code Bias) based on PPP technology is introduced.And P1-P2 DCB estimate of several IGS tracking stations distributing globally are calculated by the method.The results show that accuracy of estimated P1-P2 DCB is better than 1 dm in middle and high latitude area,and is about 1-2 dm in low latitude area.