摘要
在三亚、汕头、宁波、拉萨、成都、青岛、北京、乌鲁木齐和哈尔滨等九个地区,对系统民用开放信号B1I的定位性能进行了试验评估。结果表明,在国内区域,可见卫星数最少为7颗,按照95%置信度统计,PDOP值小于4,单频B1I水平定位精度优于7m,高程定位精度优于10m.在"水平定位精度≤15m、高程定位精度≤15m"的条件下,单频定位精度的可用性达到99%以上、连续性整体达到98%以上。
The article analyses positioning performance of B1 I signal based on test in the nine regions,including Sanya,Shantou,Ningbo,Lhasa,Chengdu,Qingdao,Beij ing,U-rumchi and Harbin.The results show that,in the domestic area,the number of visible satel-lites at least 7,in accordance with the 95% confidence level statistics,PDOP value is less than 4,horizontal positioning accuracy better than 7 m,vertical positioning accuracy better than 10 m.On the horizontal positioning accuracy less than 15 m and vertical positioning ac-curacy less than 15 m terms,usability is more than 99%,continuity more than 98%.
出处
《全球定位系统》
2014年第2期30-33,共4页
Gnss World of China
基金
国家自然科学基金资助项目(批准号:41104022)
第二届中国卫星导航学术年会青年优秀论文获奖者资助课题(编号:CSNC2011-QY-13)
