查询词典 GPS

So that, we should do some effective transfor2 mation among these three systems, including time system and coordinate system. For the requirement, the time system and coordinate system for each of them are analyzed in details. And then, the method of time transformation and the model of coordinates transforma2 tion among GPS, GLONASS and GAL ILEO are p roposed based on lots of integration, certification and calculation.

这就需要我们对此三个系统的时间系统以及坐标系统进行有效的转换，本文就是基于这样的需求，详细介绍并分析了此三大系统中各自的时间系统与坐标系统，通过对多方资料的综合、推证与计算，综合得出GPS、GLONASS以及GAL ILEO三大系统间的时间转换方法及坐标转换模型与公式。

Firstly, all kinds of error sources affecting GPS positioning precision are analyzed in this thesis and it is concluded that troposphere de

本论文分析了影响GPS定位精度的各种误差源并提出了相应的对策，通过深入分析得出对流层影响是制约VRS系统精度的瓶颈之一。

GPS is a universal positioning system, which has unexampled superiority relative to others navigation devices.

作为一种通用的定位系统，GPS具有许多其它导航设备无可比拟的优越性，人们对其重视程度也日益提高。

GPS and VLBI is complete different observed technology, so the crustal motion deduced from them may be absolute unlikeness.

VLBI和GPS是两种完全不同的观测技术，它们测得的地壳运动有可能是完全不同的情况。

When your GPS system tells you to drive down an unpaved, three-foot-wide path, perhaps it's time to pull to the side of the road, get your bearings and maybe - just maybe - even ask for directions.

当您的GPS系统会告诉您，为了降低一个铺，三英尺宽的道路，也许现在是时候撤出的路边，让您的轴承，也许-只是也许-甚至要求的方向。

The purpose of this paper was providing some experience and ready reference for people who could design a utile and abroad popular GPS vehicle monitoring system .

提供了笔者在实际工程应用中总结出的一些经验，为人们设计实用的，具有广泛推广价值的GPS车辆监控系统提供参考

Overview 概述 The VBOX Mini is a low cost, self-contained GPS data logging and display system suitable for a large range of vehicle testing applications.

迷你VBox是一款低价位的，自带GPS数据记录及显示系统的适用于各种车辆测试的仪器。

The phylogeny and applied prospect of MES are summarized in the paper. The principle of this system is analyzed from the point of view of acoustics. The surveying and filtering technology of auxiliary parameters, sounding data and the theory of image form, backscatter strength data processing, are researched deeply in the paper. The optimal model of velocity of sound is given. For sound ray tracing, some methods of correction of sound ray curve are developed. At the same time, an ideal model of sound ray tracing is proved and given. The GPS technology is applied for the determination of tide, attitude of vessel. Moreover, some methods are given. As an important topic, the systematic error is discussed in the paper. Some filtering methods are researched in this paper. Based on the current methods of image processing, the procedure and methods are tested and given that adapt to sonar image processing.

本文研究的工作是在总结多波束声纳测深系统的发展历史、应用前景的基础上，从声学角度分析了多波束系统的工作原理；对多波束辅助参数的测定和滤波方法、测深数据的滤波方法、多波束声纳图像的形成机理、图像处理以及最终应用等作了比较深入的研究；得出了适合于多波束精密深度计算的最优声速模型和声线改正模型；提出了 GPS 载波相位定位技术用于多波束辅助参数测量的思想、算法，改善了多波束系统的作业模式；系统地分析了深度数据的误差来源和类型，首次将系统误差作为影响测深精度的主要因素给以研究，并给出了削弱系统误差的方法，提高了深度数据的质量；对多波束声纳图像的形成、处理方法进行了细致的研究，给出了适合多波束图像处理的算法和流程，并从理论和实践上对声纳图像的应用进行了比较全面的研究。

He assists Neveu out of the truck, and they hop into the front, leaving Vernet to fend for himself in the forest, where he has triggered the GPS device, hidden under the truck.

他帮助奈芙出了卡车，他们跳进车的前面，将维尼特留在了树林里挣扎，他启动了隐藏在卡车下的GPS追踪器。

GPS ; quasi-geoid ; normal height ; precise model ; isoline of height anomaly ; deflection of the vertical

GPS ；似大地水准面；正常高；精化模型；高程异常等值线；垂线偏差

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。