基于区域大气增强PPP及其在交通运输中的应用
发布时间：2019-01-08 19:18
【摘要】：加快收敛速度是目前实时动态精密单点定位研究的难题。通过已知点观测数据验证了非差非组合PPP定位方法与传统消电离层组合PPP定位精度相当,具有一定实际应用价值。利用高精度CORS系统建立区域电离层模型并对非差非组合PPP进行约束,与消电离层组合PPP定位结果相比,E方向初始历元定位偏差小于0.5 m,8 min内定位偏差收敛至小于10 cm,定位精度得到明显提高,完全能够满足交通运输中动态定位导航的需求。
[Abstract]:To speed up convergence is a difficult problem in the research of real-time dynamic precise single point positioning. It is verified that the accuracy of the non-differential and non-integrated PPP positioning method is the same as that of the traditional ionospheric integrated PPP location method, which has a certain practical application value. The regional ionospheric model is established by using a high-precision CORS system and the non-differential non-integrated PPP is constrained. The initial epoch positioning deviation of E direction is less than 0.5 m compared with the result of ionospheric combined PPP positioning. The positioning accuracy of 8 min converges to less than 10 cm, which can meet the needs of dynamic positioning and navigation in traffic and transportation.
【作者单位】： 武汉大学中国南极测绘研究中心;
【基金】：中央高校基本科研业务费专项资金(2042016kf0037)
【分类号】：U495;P228.4
，
本文编号：2405018
[Abstract]:To speed up convergence is a difficult problem in the research of real-time dynamic precise single point positioning. It is verified that the accuracy of the non-differential and non-integrated PPP positioning method is the same as that of the traditional ionospheric integrated PPP location method, which has a certain practical application value. The regional ionospheric model is established by using a high-precision CORS system and the non-differential non-integrated PPP is constrained. The initial epoch positioning deviation of E direction is less than 0.5 m compared with the result of ionospheric combined PPP positioning. The positioning accuracy of 8 min converges to less than 10 cm, which can meet the needs of dynamic positioning and navigation in traffic and transportation.
【作者单位】： 武汉大学中国南极测绘研究中心;
【基金】：中央高校基本科研业务费专项资金(2042016kf0037)
【分类号】：U495;P228.4
，
本文编号：2405018
本文链接：https://www.wllwen.com/kejilunwen/dizhicehuilunwen/2405018.html
