摘要
为了满足用户更高的定位精度要求,研究了载波相位平滑伪距差分定位方法.根据差分定位原理,基于MATLAB平台自主编制了差分解算软件,兼容北斗和GPS伪距差分定位;基于ARM+FPGA平台的接收机实现了相位平滑伪距差分定位.实验结果表明,零基线条件下,相位平滑伪距差分算法定位精度可由标准定位的米级水平提高到亚米级,性能稳定.基线距离增大,定位精度随之降低,误差在±4m内,差分讯龄和定位精度成正比关系.
In order to satisfy the user＇s higher positioning requirements, we studied the carrier phase smoothed pseudo- range differential positioning method. According to persuade-range positioning theory, pseudo-range differential positioning software has been programmed based on MATLAB, which is compatible with BDS and GPS. At the same time, receiver imple- mented phase smoothed pseudo-range differential positioning based on ARM ＋ FPGA platform. Experimental results show that： the positioning accuracy of phase smoothed pseudo-range differential algorithm can be increased from meter to sub meter under the zero baseline, and the performance is stable; Baseline distance increases, the positioning accuracy decreases, and the error is within 4 m, and there is a positive correlation between differential age and positioning accuracy.
出处
《河南师范大学学报（自然科学版）》
CAS
北大核心
2016年第4期63-68,共6页
Journal of Henan Normal University(Natural Science Edition)
基金
国家自然科学基金(61162007
61271284)
广西自然科学基金(2013GXNSFA019004)
2014年主任基金(GXKL0614102)
广西硕士研究生创新项目(YCSZ2015146)
