But Contaldi says that GPS synchronization is not nearly that accurate, because GPS satellite signals are themselves subject to gravitational time dilation.
然而卡洛·康泰迪说，用GPS人造卫星来同步时钟，远远达不到这个准确度，这是因为GPS人造卫星的信号本身也受到重力时间膨胀效应的影响。
Satellite beam synchronization design strategy is key design issue of distributed spaceborne radar system design.
波束同步设计是星载分布式雷达系统总体设计的重要问题。
The clock synchronization experiment via Japanese Geostationary Meteorological Satellite (GMS) is being conducted between Shanghai observatory (SO) and Radio Research Laboratories (RRL).
通过日本静止气象卫星(GMS)的远距离钟同步实验正在上海天文台(SO)和日本电波研究所(rrl)之间进行。
The long distance, high precision time synchronization is very important for SDH communication net, control of electric power system and satellite navigation system, etc.
远距离、高精度的时间同步对SDH通信网、电力系统调控和卫星导航系统等有着极其重要的意义。
The building up of Beidou navigation satellite system developed by China offers a new option of the time service for synchronization phasor measurement.
我国自主开发的北斗卫星导航系统为同步相量测量的时钟源提供了一种新的选择。
We have implemented the equipment of digital frequency leading by 8086 microcomputer and successively applied in measuring and control station of synchronization communication satellite.
作者等人以8086微机实现的数字频率引导设备已成功地应用于同步通讯卫星测控站中。
This paper is focused on the new concept of cluster OFDM for high-speed data transmission in the Satellite-Earth communication, researches on the key technology of synchronization and cluster.
本文研究了星-地高速数据传输的新型群聚OFDM概念，研究新型系统中的同步、群聚关键技术。
With the demand of time synchronization between ground stations of satellite navigation system, the traditional time transfer methods are summarized systematically.
针对卫星导航系统站间时间同步的需求，系统地总结了传统的时间传递方法。
According to characteristic of regional exploring satellite system, an intermittent regional covering orbit design scheme is proposed using circular sun synchronization orbit.
根据区域性探测卫星系统的特点，提出了利用太阳同步轨道间歇性区域性覆盖特定区域的轨道设计方案。
A simulation model of the method is set up using filtering algorithm of extend Kalman, and the system simulation is made using simulative data at the basic of a synchronization satellite of the earth.
结合推广的卡尔曼滤波算法，建立了该方法的仿真模型，以某地球同步卫星为背景，利用模拟数据进行了系统仿真。
It is necessary to analyze and design the intersatellite link (ISL) for satisfying the requirement of time synchronization signal transmitting in satellite constellation time synchronization.
在卫星星座内的时间同步中，为满足时间同步信号的传输要求，需要对星间链路进行分析和设计。
Distributed SAR satellite one is a complex and antenna beam synchronization is a prerequisition for interferometry SAR.
分布式SAR是一个复杂的协同工作编队多卫星系统，波束同步是实现干涉SAR的前提。
As the Beidou satellite navigation system, it is possible to use the time service as the source of synchronization referrence in Tactics FH radio.
随着北斗卫星导航系统的正式运营，利用北斗无源授时服务提供的时钟作为战术跳频电台的同步参考时钟成为了可能。
This paper describes the issues in terms of time synchronization in satellite navigation systems, satellite navigation device zero point, and device zero point calibration.
概述了卫星导航系统的时间同步问题和卫星导航的设备零值及其标校问题。
In this paper, we analyze the key techniques for the service precision of Global Navigation satellite System such as time reference, time synchronization, satellite orbit determination, etc.
对影响导航定位系统定位精度的各种因素进行了分析。研究了影响导航定位精度的关键技术问题，如时间基准、时间同步和卫星定轨等。
In this paper, we analyze the key techniques for the service precision of Global Navigation satellite System such as time reference, time synchronization, satellite orbit determination, etc.
研究了影响导航定位精度的关键技术问题，如时间基准、时间同步和卫星定轨等。
When SAR satellite compensates Doppler Shift with yaw steering, for beam pointing synchronization, formation maintenance and attitude control of concomitant satellite formation should be coordinated.
首先，简介主SAR卫星与伴随卫星编队所构成干涉测量系统的工作原理，当主SAR卫星施加偏航导引补偿多普勒频移时，为实现波束指向同步，伴随编队需进行构形与姿态的协同控制。
Considering the demands of yaw steering for InSAR satellite formation, two beam synchronization strategies meeting the demands of yaw steering were put forward.
考虑到干涉SAR卫星编队姿态偏航导引要求，提出了两种兼顾偏航导引的编队波束同步方法。
The extraction of synchronization is one of the key technologies in the design of remote sensing satellite ground record and archive system.
同步字提取是遥感卫星地面记录与存档系统设计中的关键技术之一。
Then, based on the overall structure of the IF all-digital demodulator for FY-2 meteorological satellite, the digital down conversion and the timing synchronization are deeply researched.
随后在风云二号气象卫星中频全数字解调器总体结构方案的基础上，对数字下变频和定时同步部分进行了重点研究。
A data fusion method of realizing receiver and sender of satellite location system to keep the synchronization time are presented.
研究了实现卫星定位接收机终端时间与卫星系统时间保持实时同步的一种异步数据融合方法。
A data fusion method of realizing receiver and sender of satellite location system to keep the synchronization time are presented.
研究了实现卫星定位接收机终端时间与卫星系统时间保持实时同步的一种异步数据融合方法。
应用推荐