大地测量与地球动力学2018，Vol.38Issue(2)：187-190,210,5.DOI:10.14075/j.jgg.2018.02.016
BDS三频观测值多路径误差的差异性分析
Differences in Multipath Error of BDS Triple-Frequency Observations
摘要
Abstract
BDS is composed of three different heights of orbital satellites and broadcasts three-frequency signals,which may lead multipath to present new features.These characteristics cause the multipath error of BDS observations to possibly differ between constellation and the frequency.Based on this,by using the 17 GNSS multimode observatory data from the MGEX and iGMAS,the diversity of BDS multipath error is analyzed from five aspects of elevation angle,signal frequency,receiver type,tracking station distribution and satellite constellation.At the same time,the multipath errors of GPS observations are compared with that of homologous observation stations.The conclusions are as follows:the multipath error of the B3 is lowest;the multipath error of the GEO satellite is less than that of IGSO's and MEO's in the three constellations;there is no significant difference in the multipath errors between the GEO and the IGSO;compared to the multipath error of GPS,the result of B3 is slightly better than the results of GPS three frequency points,the results of B1 and B2 are equivalent to that of the L1 and L2 in accuracy.关键词
BDS/三频/多路径/iGMAS/MGEXKey words
BDS/triple-frequency/multipath/iGMAS/MGEX分类
天文与地球科学引用本文复制引用
高余婷,王利,黄观文,范丽红..BDS三频观测值多路径误差的差异性分析[J].大地测量与地球动力学,2018,38(2):187-190,210,5.基金项目
Special Fund for Basic Scientific Research of Central Universities,No.CHD310826172006,CHD310826165018 （）
The Grand Projects of the Beidou-2 System,No.GFZX0301040308 （）
National Natural Science Foundation of China,No.41304033,41504006,41604001 （）
Natural Science Foundation of Shaanxi Province,No.2016JQ4011.中央高校基本科研业务费专项基金(CHD310826172006,CHD310826165018) （CHD310826172006,CHD310826165018）
中国第二代卫星导航系统重大专项(GFZX0301040308) （GFZX0301040308）
国家自然科学基金(41304033,41504006,41604001) （41304033,41504006,41604001）
陕西省自然科学基金(2016JQ4011). （2016JQ4011）
