摘要
为分析北斗系统正式向亚太地区提供区域服务以来其伪距单点定位精度,以及与GPS伪距单点定位精度进行比较,本文采用C++独立编写了GPS和BDS的伪距单点定位程序,并对武汉大学在亚太地区布设的北斗系统连续观测基准站网在2013年1月15日所采集的GPS和北斗的数据进行解算。通过比较GPS和北斗在一天中各个单历元解的散点分布,N、E、U方向的偏差,PDOP值和可见卫星数的变化,来比较GPS与北斗伪距单点定位的性能。实验结果表明:GPS与北斗的伪距单点定性能相差不大,GPS的定位精度可以保证15m以内,而北斗系统的定位精度优于20m.
To analyze the performance of BDS positioning after it provided formal service for Asia-Pacific region and compared the performance of positioning with GPS ,in this paper , single point positioning programs of GPS and BDS respectively by using C ＋ ＋ are presen-ted .The program is used to handle the mixed-data of GPS and BDS in January 15 ,2013 from Beidou experimental tracking stations established by wuhan university .The performance of GPS and BDS is compared through the scatter of positioning results ,deviations in N ,E and U directions respectively ,PDOP value and changes in the number of visible satellites .It con-cludes that the positioning error of GPS is less than 10 m while BDS is less than 15 m .
出处
《全球定位系统》
2014年第3期8-14,共7页
Gnss World of China
基金
国家自然科学基金(批准号:41374033)
