Abstract In order to analyze the efficiency of multi-GNSS combined PPP technology in different complex conditions in the Asia-Pacific region, GNSS observations from five stations are used to simulate three kinds of shelter conditions: surrounded shelter(urban environment), unilateral shelter(canyon environment) and headspace shelter(large bridge subgrade environment). The service advantages and positioning efficiency of multi-system PPP technology are analyzed from the five aspects of available satellite number, PDOP value, available rates, positioning accuracy and convergence time. The numerical results show that, compared to single GPS PPP results, the four-system GNSS PPP results can be improved 300%, 40%, 2%, 20% and 50% in terms of available satellite number, PDOP value, available rate, positioning accuracy and convergence time in the normal environment, and 300%, 57%, 25%, 39% and 52% in the complex environment.
HUANG Guanwen,LEI Zhezhe,WANG Jin et al. Efficiency Analysis of Multi-GNSS Combined PPP in Complex Conditions of Asia-Pacific Region[J]. jgg, 2018, 38(6): 562-567.
HUANG Guanwen,LEI Zhezhe,WANG Jin et al. Efficiency Analysis of Multi-GNSS Combined PPP in Complex Conditions of Asia-Pacific Region[J]. jgg, 2018, 38(6): 562-567.
