BDS基线解算不同时段精度差异分析

发布时间：2018-03-02 08:20

本文关键词： 北斗导航定位系统(BDS) 基线解算精度评定时段差异　出处：《测绘通报》2016年06期 　论文类型：期刊论文

【摘要】：北斗导航卫星系统(BDS)已投入运行并完全覆盖我国区域,验证和评估BDS定位精度成为当前的研究热点。本文在河北和四川地区进行了当天内分时段的BDS基线解算,比较结果显示,BDS系统具有良好的稳定性,外符合精度在0.2 m之内,计算基线弦长中误差满足10 mm+5×10~(-6)D的国家C级控制网的精度要求,同一基线多天分时段解算结果呈现规律性变化,不同时段的结果差异较大,凌晨及傍晚时段的结果精度较高,下午时段的结果精度较差。
[Abstract]:Beidou Navigation Satellite system (BDS) has been put into operation and completely covers the area of our country. The verification and evaluation of BDS positioning accuracy has become a hot research topic at present. In this paper, the BDS baseline solution in Hebei and Sichuan regions has been carried out in different periods of the day. The comparison results show that the BDS system has good stability, the precision of external coincidence is within 0.2 m, and the central error of calculating baseline chord length meets the precision requirement of the national C-class control network with 10 mm 5 脳 10 ~ (10) ~ (-6) D. In the same baseline, the results of multi-day time interval show regular changes, the results of different periods are different, the accuracy of the results in the early morning and evening period is higher, and the accuracy of the results in the afternoon period is poor.
【作者单位】：中国测绘科学研究院;四川省第一测绘工程院;长安大学;
【基金】：科技部科技支撑计划(2012BAB16B01);科技部863计划(2013AA122501) 北斗分析中心(GFZX0301040308-06) 四川测绘地理信息局科技支撑项目(J2014ZC01;J2015ZC01) 测绘地理信息共享服务关键技术研究(2015SZ0046) 面向新型基础测绘的地理信息更新与监测技术研发(2016KJ0200) 四川省北斗实时亚米级智能位置服务关键技术研究(2016KJ0205) 国家自然科学基金(41304030;41504010) 中国测绘科学研究院科研业务费(7771416;7771503)
【分类号】：P228.4

【相似文献】