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gps measuring
相关语句
  gps测量
     ANALYSIS AND APPLICATION OF REAL TIME GPS MEASURING SYSTEM
     实时GPS测量系统分析及应用
短句来源
     The Analysis of Multipath Error of GPS Measuring with Practical Data
     用实测数据分析GPS测量中的多路径误差
短句来源
     Through processing GPS measuring data, the system reduces error and promt the system precesion.
     在实现系统功能的基础上,对GPS测量数据进行处理,减少了系统定位误差,提高了系统定位精度。
短句来源
     The phasiel-differential GPS measuring system has high accuracy for fixed position. But it is difficulty to check the accuracy of the fixed position.
     相位差分GPS测量系统定位精度高,对系统动态定位精度的考核、验收的难度大。
短句来源
      According to GPS surveying technical characteristics synchronous and asynchronous loop setting up aimed at relation between GPS net-form midpoint margin and loop based on take account of GPS measuring accuracy and operation method optimization the paper put forward relation between elements and net-form geometric features using CAD to design most optimized control network scheme take shortest path method to compile optimal observation program.
     根据GPS测量的特点、技术特征,以及设立同步环、异步环的技术方法,针对GPS网形中点、边及环等的关系,在充分考虑GPS测量精度和优化作业方法的基础上,提出了GPS测量中的各要素关系及网形几何特征,并利用计算机技术辅助设计出最优化的控制网方案,用最短路径法编制最优观测方案。
短句来源
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  “gps measuring”译为未确定词的双语例句
     The GPS measuring technique of high precision monitoring control network
     高精度监测控制网的GPS施测技术
短句来源
     The system includes hardware and software compose, designing method of monitoring item, disposal of GPS measuring points, data collection and transmission project adapted to the long-span bridge health monitoring system based on GPS, and data processing and analysis method during system running.
     包括系统应具备的硬件组成和软件组成、监测项目方案的制定方法及GPS测点的布置、适合基于GPS桥梁监测系统的数据采集和传输方案、系统运行过程中要进行的数据处理和分析。
短句来源
     They are increasingly replacing conventional communication forms and obtaining extensively applications in modern military and commercial communication systems, for example, CDMA communication system, GPS , measuring and control system, satellite chain, identification of friend or foe and etc.
     正日益取代常规通信而广泛应用于现代军事和商用通信系统中,如码分多址(CDMA)通信、全球定位系统(GPS)、测控、卫星链路和敌我识别等。
短句来源
     A reasonable checks method to for GPS measuring system is made after the analysing of different methods in this aspect.
     分析了方法自身达到的精度。
短句来源
     By comparing formula,computing and analyzing the difference of coordinate transformation,the conclusions are gained:very minute interval between them in small scope,but the new formula is a useful tool to get high precise coordinate transformation of GPS measuring point in large scope.
     对两公式进行比较,并用WGS-84坐标与BJ54坐标转换的差异进行计算、分析,结果表明:在小区域范围内,利用两公式进行坐标转换效果相差不大,但对测区范围较大的情况,新的大地坐标微分公式为获得GPS测点的高精度坐标转换,提供了有用的工具.
短句来源
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  相似匹配句对
     GPS and Applied to Measuring the Weather
     GPS及其在大气探测中的应用
短句来源
     Relativistic Meaning of Measuring Principle of GPS
     GPS测量原理的相对论意义
短句来源
     GPS Levelling
     GPS水准
短句来源
     The Use of GPS in ITS
     全球定位系统GPS在ITS中的应用
短句来源
     Measuring inequalities
     不均衡度的测量
短句来源
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  gps measuring
On the territory of the Czech Republic the network contains altogether 1 0 GPS measuring points.
      


Integration of a Strapdown Inertial Navigation System (SINS) with a Glo-bal Positioning System (GPS) receiver presents many advantages. With thisintegrated design approach, the authors overcome some of the recognized limi-tations of an INS such as: (1) unbounded position error and pilot initialization,(2) stand-alone GPS limitations such as poor satellite geometry and dynamicnoise. This paper discusses the synergistic effect obtainable with such an approach,and emphasizes Kalman filter design, system...

Integration of a Strapdown Inertial Navigation System (SINS) with a Glo-bal Positioning System (GPS) receiver presents many advantages. With thisintegrated design approach, the authors overcome some of the recognized limi-tations of an INS such as: (1) unbounded position error and pilot initialization,(2) stand-alone GPS limitations such as poor satellite geometry and dynamicnoise. This paper discusses the synergistic effect obtainable with such an approach,and emphasizes Kalman filter design, system configurations and performanceevaluation. This paper analyzes a specific example and the key features of suchan analysis are: (1) A comprehensive digital computer simulation is developed. (2) Covariance analysis results are presented to demonstrate the impro-ved performance of the proposed integrated system composed of medium accu-racy strapdown instrument package and C/A Code GPS receiver under diffe-rent flight scenarios. In the covariance analysis just mentioned, the authors show that beforeloss of the GPS signal, the navigation errors are bounded by the GPS solutionaccuracy. North, East and vertical velocity errors are 0.07, 0.1 and 0.08m/s(1σ), respectively. North and East positions and altitude errors are 11, 15 and20m (1σ) for precise position locating. During the 180sec GPS signal outagedue to aircraft maneuvers and/or radio noise jamming, the position error inc-reases from 18m to 80m, the horizontal velocity error goes from 0.1m/s to0.7m/s. As a result of inertial velocity aiding, fast reacquiring of the jammedor masked satellite signal can be realized, the navigation error quickly returnsto its full operational values. Accurate and rapid INS in-flight alignment canbe accomplished in aircraft straight flight and turns by using GPS measure-ments. Initial rms azimuth alignment errors are reduced from about 35 arcminto about 2, 5 arcmin in less than 3 minutes. In this paper the authors show that the present integrated system approachallows the error estimation filter design to be less dependent on strict modellingof error dynamics, and that the system can be implemented with a modulardesign approach and is cost-effective and reliable.

采用卡尔曼滤波器进行最优组合的GPS/捷联惯性组合导航系统是一种精度高、成本效益好、功能可靠的导航系统。它既能增强GPS接收机的抗干扰能力又能抑制惯导的积累误差。机动飞行和干扰环境下所进行的模拟计算表明,采用C/A码GPS接收机和低精度(0.1°/h陀螺,1×10~(-3)加速度计)捷联惯导所组成的系统,定位精度可达20m(1σ),速度精度约为0.1m/s(1σ)。与纯惯导相比,性能精度约提高2个数量级。系统具有对惯性元件进行测漂补偿,对GPS用户钟差进行估计校正和实现惯性平台空中对准的功能,能缩短地面准备时间,提高飞行器的快速反应能力,是一种在航空、航天等领域中有着广阔应用前景的导航定位系统。

According to the time series analysis method and a host of GPS measured data, this paper analyzes GPS position error's statistical character and builds up GPS position error'smodel.

采用时间序列分析方法,根据大量的实测数据分析了GPS定位误差的统计特征,建立了GPS定位误差模型。

Thepaper outlines the objective and requirement of defining the said protection said protection range, the characteristics 0f GPS measure- ment, measurement scheme, and accuracy ob- tained by using this technique. The author a1-so points out the points requiring attention in the process of carrying out the measurement.

本文阐述了微波通道保护范围测定的目的和要求,用GPS测量技术进行微波通道保护范围测定的特点、实施方案及精度要求,并提出了圈定保护范围应注意的问题。

 
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