【摘 要】
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Precise point positioning (PPP) technology is a positioning enhancement technique that can cover a large area and reduce the cost of positioning.With the support of real-time precise orbit and clock o
【机 构】
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College of Geology Engineering and Geomantic, Chang'an University, Xi'an, Shaanxi, China, 710054
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Precise point positioning (PPP) technology is a positioning enhancement technique that can cover a large area and reduce the cost of positioning.With the support of real-time precise orbit and clock offset products,the global real-time precise point positioning can be realized,which greatly improves the effectiveness and availability of the results.Firstly,in this paper,the global real-time precise orbit and clock offset can be calculated by the BeiDou global continuous tracking station.Then the BeiDou global enhanced message is designed,the frequency and the type of broadcasting enhanced message are analyzed.Finally,the real-time PPP accuracy of BDS is studied.The actual measured numerical example shows that the real-time PPP based on BDS can achieve decimeter-level position accuracy in the Asian-Pacific region.
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