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引力时延
相关语句
  gravitational time delay
     The relativistic model with centimeter precision in data analyses of LLR has been described. It includes the time transformations from TAI to TDB, the time scales, and the corrections for gravitational time delay.
     本文对激光测月资料分析中的相对论效应作了较系统的分析讨论,包括观测时刻的转换,TAI和TDB两种时间尺度的换算、测站的地心坐标和反射器的月心坐标到太阳系质心框架下的瞬时空间坐标的转换以及引力时延改正等一系列问题。
短句来源
  shapiro time delay
     According to the project of the Mini-Astrodynamical Space Test of Relativity using Optical Devices,(Mini-ASTROD) the Shapiro time delay in the general relativity is examined using the ground deep-space laser ranging,a scheme that observational values are compared with theoretical ones is given,and the value of the spatial curvature parameter γ is fit out.
     根据Mini-ASTROD空间计划方案 ,利用地面深空激光测距来检验引力时延 ,给出了测量值与理论值直接比对的方案 ,并拟合出空间曲率参数γ的值。
短句来源
     Test of the Shapiro Time Delay of the General Relativity Using the Ground-Deep-Space Laser Ranging
     利用地面深空激光测距检验相对论的引力时延
短句来源
     Directly using laser ranging between ground station and planetary detectors is not only to test Shapiro time delay in the general relativity,but also to improve the uncertainty of one or two orders of magnitude on the determination of γ.
     在地面站和行星探测器之间直接进行激光测距 ,不仅可以验证广义相对论的引力时延 ,而且还可以使γ的精度提高至少 1~ 2个量级。
短句来源
  相似匹配句对
     The Attraction of the Map
     地图的引力
短句来源
     The speed of gravity
     引力的速度
短句来源
     THE EFFECTS OF SOLAR GRAVITATION FIELD ON THE TIME DELAY FOR VLBI
     关于太阳引力场对VLBI时延测量的影响
短句来源
     Test of the Shapiro Time Delay of the General Relativity Using the Ground-Deep-Space Laser Ranging
     利用地面深空激光测距检验相对论的引力时延
短句来源
     Stability of networked control systems with time-delay
     时延网络控制系统的稳定性
短句来源
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  shapiro time delay
Simulation model for shapiro time delay and light deflection experiments
      


The relativistic model with centimeter precision in data analyses of LLR has been described. It includes the time transformations from TAI to TDB, the time scales, and the corrections for gravitational time delay. This paper also gives the relativistic effects in the computation of the solar system barycentric positions of a station and a lunar reflector.

本文对激光测月资料分析中的相对论效应作了较系统的分析讨论,包括观测时刻的转换,TAI和TDB两种时间尺度的换算、测站的地心坐标和反射器的月心坐标到太阳系质心框架下的瞬时空间坐标的转换以及引力时延改正等一系列问题。同时比较分析了目前我们归算软件中的相对论模型,指出原模型必须作适当的改进才能和厘米级的观测精度相匹配。

The Shapiro time delay in the general relativity is discussed in this paper.According to the project of the Mini-Astrodynamical Space Test of Relativity using Optical Devices,(Mini-ASTROD) the Shapiro time delay in the general relativity is examined using the ground deep-space laser ranging,a scheme that observational values are compared with theoretical ones is given,and the value of the spatial curvature parameter γ is fit out. Some devices such as the saynchronous laser transponder and the Pico-Event-Timer...

The Shapiro time delay in the general relativity is discussed in this paper.According to the project of the Mini-Astrodynamical Space Test of Relativity using Optical Devices,(Mini-ASTROD) the Shapiro time delay in the general relativity is examined using the ground deep-space laser ranging,a scheme that observational values are compared with theoretical ones is given,and the value of the spatial curvature parameter γ is fit out. Some devices such as the saynchronous laser transponder and the Pico-Event-Timer were used to upgrade the precision and the stability of measurement.Directly using laser ranging between ground station and planetary detectors is not only to test Shapiro time delay in the general relativity,but also to improve the uncertainty of one or two orders of magnitude on the determination of γ.It will be of great importance for cosmology and modern theories of gravitation.

讨论了广义相对论的引力时延。根据Mini-ASTROD空间计划方案 ,利用地面深空激光测距来检验引力时延 ,给出了测量值与理论值直接比对的方案 ,并拟合出空间曲率参数γ的值。文中采用非同步的激光应答器、皮秒事件记数器等设备 ,可以提高测量的精度和稳定性。在地面站和行星探测器之间直接进行激光测距 ,不仅可以验证广义相对论的引力时延 ,而且还可以使γ的精度提高至少 1~ 2个量级。这对于宇宙学和引力理论具有十分重要的意义

With the improvement of observation technique's accuracy of space geodesy, theoretical models of Laser ranging should be adapt to predictable requirement of accuracy at present and in the future. Based on the basic principle of laser ranging, a relativistic theoretical model of laser ranging in BRS and GRS is put forward in this paper. The magnitude of gravitational time delay of the two models is estimated. Theoretical formula of complete and consistent time scale and spatiotemporal coordination conversion...

With the improvement of observation technique's accuracy of space geodesy, theoretical models of Laser ranging should be adapt to predictable requirement of accuracy at present and in the future. Based on the basic principle of laser ranging, a relativistic theoretical model of laser ranging in BRS and GRS is put forward in this paper. The magnitude of gravitational time delay of the two models is estimated. Theoretical formula of complete and consistent time scale and spatiotemporal coordination conversion are given meanwhile. According to the lastest conversion relation between BRS and GRS, we derive the relativistic theory model of laser ranging for GRS within pico-second level, and enlarge the application range of the laser ranging model recommended by IERS.

随着空间大地测量技术观测精度的提高 ,需要激光测距理论模型适应目前和未来可预见的精度要求 .本文基于激光测距的基本原理 ,给出了太阳系质心参考系 (BRS)和地球质心参考系 (GRS)中的相对论激光测距的理论模型 ,对两种激光测距模型中有关引力时延的量级进行了估计 ,并给出了完整而自洽的时间尺度和时空坐标变换的理论公式 .根据最新的BRS和GRS系之间的时空坐标变换关系 ,在皮秒 (10 - 1 2 s)的精度下 ,推导出了在GRS中适合于所有激光测距问题的相对论模型 ,同时扩展了IERS推荐的激光测距模型的适用范围

 
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