[PDF][PDF] 低仰角下对流层散射斜延迟估计方法

陈西宏, 刘赞, 刘继业, 刘进, 张群 - 电子与信息学报, 2016 - edit.jeit.ac.cn
对流层斜延迟是对流层散射双向时间比对系统的主要误差来源, 目前尚未有对系统中对流层斜
延迟进行精确估计的模型. 为精确估计斜延迟, 引入电磁波射线描迹法, 并利用Hopfield …

[PDF][PDF] 基于光纤链路的高精度时间频率传输与同步

高超, 王波, 白钰, 苗菁, 朱玺, 李天初, 王力军 - 科技导报, 2014 - kjdb.org
摘要在清华大学与中国计量科学研究院之间往返80 km 的商用光纤链路上进行了时间频率同时
传输与同步实验. 采用时间频率同时传输与同步的方法, 获得了7× 10-15/s, 5× 10-19/d …

Estimating tropospheric slant scatter delay at low elevation

X CHEN, Z LIU, J LIU, J LIU, Q ZHANG - 电子与信息学报, 2016 - jeit.ac.cn
Troposphere slant delay is the main error source in two way troposphere time transfer. But
there is not an accurate model to estimate the slant delay caused by tropospheric in this …

An autonomous satellite time synchronization system using remotely disciplined VC-OCXOs

X Gu, Q Chang, EP Glennon, B Xu, AG Dempster… - Sensors, 2015 - mdpi.com
An autonomous remote clock control system is proposed to provide time synchronization
and frequency syntonization for satellite to satellite or ground to satellite time transfer, with …

[PDF][PDF] 时间频率基准装置的研制现状

阮军, 王叶兵, 常宏, 姜海峰, 刘涛, 董瑞芳, 张首刚 - 物理学报, 2014 - researchgate.net
时间频率基准装置——铯原子喷泉钟, 在标准时间产生和保持, 基础物理研究中发挥了重要的
作用. 介绍了铯原子喷泉钟的工作原理, 对影响其性能的各项噪声源和频移项给出了分析 …

[PDF][PDF] 改进射线描迹的低仰角散射斜延迟实时估计

吴文溢, 钟方平, 王万鹏, 陈西宏, 朱丹 - 电子与信息学报, 2019 - jeit.ac.cn
针对任意测站的对流层散射斜延迟估算时存在探空气象数据不易实时获取的不足,
该文提出一种利用地面气象参数内插改进射线描迹计算公式的对流层散射斜延迟估计算法 …

High precision clock bias prediction model in clock synchronization system

Z Liu, X Chen, J Liu, C Li - Mathematical Problems in …, 2016 - Wiley Online Library
Time synchronization is a fundamental requirement for many services provided by a
distributed system. Clock calibration through the time signal is the usual way to realize the …

[PDF][PDF] The Incorrectness of Special Relativity and an Understanding of Time

R Cui - Applied Physics Research, 2024 - scholar.archive.org
This paper has analyzed the original paper of special relativity of Einstein carefully. It was
found that the derivation process of the theory based on a fatal logic error of physics, which …

Real-time Estimation of Tropospheric Scattering Slant Delay of Low-elevation Obtained by Improved Ray Tracing

W WU, F ZHONG, W WANG, X CHEN, D ZHU - 电子与信息学报, 2019 - jeit.ac.cn
Considering the disadvantage of oblique delay estimation of tropospheric scattering at
arbitrary stations, which is difficult to obtain real-time sounding meteorological data, an …

Time synchronization and ranging under unknown positions and velocities

XB Gu, Q Chang, Y Xu, D Wang - Science China Technological Sciences, 2017 - Springer
The process to achieve time synchronization and ranging for a network of mobile nodes is
raising a concern among researchers, and hence a variety of joint time synchronization and …