Abstract:GPS/BDS dual-frequency RTK positioning is fast and reliable, and is most widely used in high-precision dynamic positioning. However, its receiver is expensive and difficult to be widely used in urban environments. It is easy to promote GNSS single-frequency RTK because of low-price GNSS receiver. In this paper, we introduce a single-frequency BDS+GPS RTK algorithm, taking account of velocity information to assist in ambiguity fix, the inheritance of ambiguity, and the fusion of Doppler observation. Through an actual on-board test in urban environment, the single-frequency RTK positioning performance of BDS, GPS and BDS+GPS are compared and analyzed.
SU Jinglan,ZHANG Hongping. Performance Analysis of RTK Algorithm for Single-Frequency Combination of GPS and BDS in Urban Environments[J]. jgg, 2018, 38(10): 1033-1037.