当前位置: X-MOL 学术Measurement › 论文详情
Research on time and frequency transfer during PPP convergence with parameters correlation comparison
Measurement ( IF 3.364 ) Pub Date : 2020-10-16 , DOI: 10.1016/j.measurement.2020.108597
Mingjun Ouyang; Junzhi Li; Wanqing Li; Yulong Ge; Xiangwei Zhu; Zhengkun Chen; Zhiqiang Dai

The PPP(precise point positioning) has a quite long convergence time at the beginning of the positioning process or the scene that real-time data was interrupted to resume, and the positioning accuracy during the convergence period does not meet the requirements of high-precision applications. This paper studies the PPP method for time transfer and its accuracy and stability during the convergence time. Based on study the correlation between clock difference, coordinates and tropospheric parameters, the method of fixing coordinates was proposed. By the application of prior coordinate information, compared to the conventional method, with 83 stations, RMS(Root Mean Square) of clock improved range from 2.23% to 98.51% and STD (Standard Deviation) improved range from 10.13% to 92.56%; also, the time transfer accuracy was below 1 ns during the convergence period. When the modified Allan variance was adopted, the frequency stability of clock improved range from 0.55% to 30.28%, and improved up to 67.43%, which verified the improvement of frequency stability during the convergence period when prior information on coordinate was used.

更新日期:2020-10-17

 

全部期刊列表>>
spring&清华大学出版社
城市可持续发展前沿研究专辑
Springer 纳米技术权威期刊征稿
全球视野覆盖
施普林格·自然新
chemistry
3分钟学术视频演讲大赛
物理学研究前沿热点精选期刊推荐
自然职位线上招聘会
欢迎报名注册2020量子在线大会
化学领域亟待解决的问题
材料学研究精选新
GIANT
ACS ES&T Engineering
ACS ES&T Water
屿渡论文,编辑服务
ACS Publications填问卷
阿拉丁试剂right
麻省大学
西北大学
湖南大学
华东师范大学
陆海华
化学所
隐藏1h前已浏览文章
课题组网站
新版X-MOL期刊搜索和高级搜索功能介绍
ACS材料视界
天合科研
x-mol收录
胡眆昊
杨财广
廖矿标
试剂库存
down
wechat
bug