Abstract
The BeiDou navigation satellite system (BDS) has been set up and in operation by China itself. Its service performance has an important impact on China’s military and economy. As a global GNSS monitoring and evaluation system, the iGMAS (international global monitoring and assessment system) is designed and promoted by China and play a important role of a basic approach to monitor the performance of the BeiDou navigaiton system service. In this paper, the iGMAS is used to monitor and evaluate the performance of the BeiDou system service in a specific region. The analysis shows that the positioning accuracy of the BeiDou system in this region is 1.1 m in horizontal, 2.8 m in vertical, and that the speed accuracy is 0.024 m/s. It indicates that the system can provide users with a high-quality navigation and positioning service in this region.
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