Abstract To evaluate the performance of BDS global positioning service and zenith tropospheric delay estimation, based on the observations of 9 MGEX tracking stations evenly distributed around the world in a one-week period, we use GAMP software to perform BDS coordinate-static PPP with the self-calculated precise orbit and clock products of GPS/BDS. Experimental results show that the horizontal accuracy for BDS coordinate-static PPP mode is better than 1 cm, the vertical accuracy is around 1 cm, and the positioning accuracy is comparable with GPS. The estimated accuracy of zenith tropospheric delay is better than 1 cm, and the difference of RMS of errors is within 1 mm compared with the result calculated by GPS PPP. In general, the BDS full constellation already has global positioning service capabilities and ZTD inversion performance equivalent to GPS.
E Shenglong,ZHOU Gang,LONG Hai et al. Performance Evaluation of BDS Global Positioning Service and Zenith Tropospheric Delay Estimation[J]. jgg, 2021, 41(8): 789-794.
E Shenglong,ZHOU Gang,LONG Hai et al. Performance Evaluation of BDS Global Positioning Service and Zenith Tropospheric Delay Estimation[J]. jgg, 2021, 41(8): 789-794.