观测精度

涉县地震台山洞改造对DSQ水管仪观测精度提高介绍水平螺旋管逆流层析仪

The Observation Accuracy Improvement of DSQ Water Tube Tiltmeter of Shexian Seismic Station after Cave Reconstruction

系统地介绍了首都圈GPS地形变监测网布设的科学思路和原则，该网的基本情况，以及为提高观测精度而采取的重大技术措施。

In the paper , the scientific thinking and principles for establishing the GPS crustal deformation monitoring network in the region of the Capital Circle and the basic conditions of the network and the major technical measures adopted to improve the observation accuracy are described systematically .

本文简述了关于全球定位系统（GPS）的观测精度及新的轨道构成等发展近况。

The paper briefs the recent developments about the observational accuracy of the Glo - bal Positioning System ( GPS ) and its new orbital structure .

介绍了首都圈GPS地形变监测网的布设情况和提高观测精度的技术措施。

The distribution of survey points of the GPS network for monitoring crustal deformation in North China and the measures for improving survey accuracy are described .

认为观测精度比较好的仪器，例如PZT，子午环，还有很多工作要做，在天体测量学以及地球物理学领域内，空间技术并不能完全取代经典手段。

In astrometric and geodynamic areas the classical instruments will not be fully replaced by space technology .

周跳的探测与修复是GPS载波相位测量技术中的一个关键问题，周跳的存在直接影响到整周模糊度的解算及GPS观测精度。

Detection and repair of GPS cycle slip is an important problem for GPS carrier phases measurement . The occurrence of cycle slip brings severe influences to calculating integer ambiguity .

首先，采用Kalman滤波的方法改善双频伪距之差的观测精度，并利用参数估计的方法计算该时段内相应的硬件延迟。

First , Kalman Filter is used to improve the accuracy of Δ P 2P 1 , and the hardware delay of GPS system is estimated by the least square method .

SBG望远镜空间碎片观测精度分析

Observational Accuracy Analysis of Space Debris of SBG Telescope

从Lacoste－Romberg重力仪零位移特性的分析论提高观测精度的途径

The way of improving observation precision based on an analysis of zero drift character of LACOSTE-ROMBERG gravimeter

在窄角天体测量方面，将来地面上的长基线红外干涉仪，如Keck干涉仪阵，具有10μas级观测精度的潜力。

Future ground-based infrared long-baseline interferometer , such as Keck interferometer array , would have potential of 10 μ as in narrow angle astrometry .

国产DI仪存在着观测精度较低、性能稳定性不高等问题，且产品已经基本处于停产状态，售后运行维护能力不足；而进口DI仪价格又十分昂贵，售后维修周期长。

The domestic DI instrument faces with the following problems : low accuracy 、 unstable performance 、 basically in stop production and poor after-sales service ; More than that , imported instrument is extremely expensive and has a long after-sales maintenance cycle .

为即将启动的流动VLBI系统选取了频率窗口，并对我国VLBI站所组成基线的系统性能和观测精度进行了估计。

In this paper , we selected a set of observation frequency windows for the mobile VLBI system , and estimated the system performance and observation precision of the baselines made by the VLBI station in China .

近10年来，随着非地震勘探仪器设备观测精度的提高和数据处理解释技术的进步，非地震勘探在中国石油（PetroChina）的13个油田逐步得到推广应用，取得了较好的经济和社会效益。

With the increase of observation precision of non-seismic equipments and the progress of data processing in ten years , non-seismic exploration techniques have been gradually used in 13 oilfields of PetroChina . Good social and economic benefits have been achieved .

随着配置有CCD的地面光学望远镜和空间望远镜观测精度的不断提高，以及其它空间大地测量技术（VLBI、LLR、SLR和GPS等）的发展，对天球参考系也提出了越来越高的要求。

Along with ceaseless advance of metrical precision for ground optical telescope with CCD and spacial telescope , as well as , other space geodesy technique 's ( VLBI , LLR , SLR and GPS ) development , the more and moe request to the CRS is put forward .

分析结果表明，NTSCGPS1的系统稳定性好，观测精度较高，并具有较好的兼容性，可用于JATC的复建工作。

The results show that NTSCGPS-1 provides good stability , higher accuracy and fair compatibility and can be used in the reconstructing of JATC ( Joint Atomic Time of China ) .

TSD型杆式水平位移计的创新点在于：将减小位移传递杆摩阻力的导向轴承安装在系统保护管内，改善了位移传递杆工作状态，从而提高了系统观测精度；

The new device has the following advantages : ( 1 ) improving the working conditions of the displacement transfer rod and increasing the observation accuracy because the guide bearing that decreases the friction resistance of the displacement transfer rod is installed in the protective tube ;

通过PREM地球模型检测了内核对章动振幅的影响，由此发现内核在亚毫角秒量级上影响主要的章动项，它和当今的观测精度是一致的。

By the PREM earth 's model , the influence of the inner core to the vibration range of nutation is checked . The main solution is that the inner core has effects to the main nutation terms in 0.1 mas , which is coincided with recent observation precision .

国际天球参考系的使用、观测精度的提高和方法的改善要求采用与地球轨道运动无关的运动赤道上的起算点，Guinot提出的非旋转原点可作为这样一种选择。

The adoption of the International Celestial Reference System and the changes of observational strategy call for the use of departure point on the moving equator independently from Earth 's orbital motion . A Nonrotating Origin ( NRO ), proposed by Guinot , is selected .

在五维空-时-质引力理论中提出了一个具有理想流体源的Friedman-Robertson-Walker式宇宙模型，论述了在目前观测精度内这一模型不存在失踪质量问题。

A Friedman-Robertson-Walker type model of the Universe with a perfect fluid source is proposed in the 5-Dimensional space-time-mass theory of gravity . It is argued that the missing mass problem does not exist in this model within the present observational accuracy .

大气竖直折射是影响竖直角观测精度的关键因素之一。

Vertical atmosphere refraction calculation was a difficult problem all along .

自由设站法三维变形观测精度的检测

On the Accuracy of 3D Deformation Observation with Free Stationing

水平位移观测精度对大坝安全的影响分析

Horizontal Displacement Observation Precision for Effect Analysis on Dam Safety

提高光电等高仪观测精度的探讨

An Approach to Improving Observational Precision of the Photoelectric Astrolabe

测角前方交会图形位置对观测精度的影响

The influence of monitoring accuracy on figure location of forward azimuth intersection

试论地震前兆新疆竖直摆倾斜仪的观测精度与震兆异常

Observation accuracy and seismic precursor anomalies of vertical pendulum tiltmeters in Xinjiang

用正向供电技术提高视电阻率观测精度

Improving the observation accuracy of apparent resistivity by using up ￣ down transmission

拉柯斯特重力仪的误差及其观测精度

The error and observation exactitude of lacoste gravimeter

路基施工沉降观测精度要求及数据处理

The Data Processing and the Precision Requirement of Roadbed Settlement in the Constructing Process

用菲列罗公式评定工程三角网观测精度的探讨

Study of evaluating the observation accuracy of Engineering triangular network using ferrero 's formula

仿真表明，观测精度优于0.003（°）/s，将其结果用于反馈，能够恢复状态反馈的系统轨迹和性能。

Simulation results show that the observation accuracy is better than 0.003 (°) / s.