Then, the troposphere pseudo-range remaining error (TDRE) of differential GPS (DGPS) is defined, its mathematical model is constructed, and the computer simulation of TDRE of DGPS is carried out.
定义了差分GPS（DGPS）的对流层伪距残差的概念，并建立了数学模型。 用计算机对DGPS的对流层伪距残差进行仿真。
The efficiency of differential global position system (DGPS) a nd Kalman filter on improving GPS receiver's positioning accuracy are verified.
验证了DGPS和卡尔曼滤波器在提高GPS接收机定位精度方面的有效性。
On the basis of above, the technique of differential GPS (DGPS) is gradually perfected.
并在此基础上逐步完善了差分gps技术(DGPS)。
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