Abstract:Based on the latest MGEX station that can receive the new signals B2a and B2(B2a+b) from BDS-3, we analyze the carrier noise ratio of the BDS-3 signal, multipath and the position dilution of precision of the satellite(PDOP). The results show that compared with GPS, the CNR B2(B2a+b)>B2a≈L5>B3≈B2b>B1≈L1>L2, multipath B2(B2a+b)<B2a≈L5<B3≈B2b <L2<L1<B1. The PDOP value of BDS-3 is similar to GPS, and the PDOP is significantly reduced after being composed of multiple systems with GPS.
ZHANG Mingyuan,ZHOU Xingyu,CHEN Hua. Quality Analysis and Constellation Geometric Performance Evaluation of New Signals B2a and B2(B2a+b) of BDS-3[J]. jgg, 2020, 40(6): 629-633.