大地测量与地球动力学2014，Vol.34Issue(6)：114-118,5.
BDS单点测速原理及精度分析
PRINCIPLE AND PRECISION ANALYSIS OF BDS ABSOLUTE VELOCITY DETERMINATION
摘要
Abstract
The principle of velocity measurement using Beidou System (BDS)was introduced,the effects of each error correctionon on single point velocity measurement was analyzed and corresponding correction formulas were proposed.At last,the accuracy of BDS was evaluated according to the results of the experiments in which the results from dynamic velocity measurement and low dynamic velocity measurement were simulated using static data.The experiments show that the accuracy can reach cm/s in the simulation using Doppler Velocity Measurement Principle,and the accuracy can reach mm/s in the simulation using Doppler observation results derived by carrier phase.In low dynamic testing experiment,the mutual deviations between original Doppler velocity measurement results and integrated navigation equipment velocity measurement accord with cm/s level.While the mutual deviations between derived Doppler velocity measurement results and integrated navigation equipment velocity measurement accord with dm/s level.It can be concluded that the results from integrated navigation equipment are obviously affected by the motion of carriers.关键词
BDS单点测速/多普勒观测值/导出多普勒/精度Key words
BDS absolute velocity determination / Doppler measurements / derived Doppler measurements / accuracy分类
天文与地球科学引用本文复制引用
刘朝英,陈国,赵齐乐,胡志刚,屈利忠..BDS单点测速原理及精度分析[J].大地测量与地球动力学,2014,34(6):114-118,5.基金项目
国家863计划项目(2013AA122501). （2013AA122501）
