查询词典 GPS

A high breakdown contaminated robust estimation model is applied to the transformation of coordinates in GPS network from WGS 84 system to local plane system.

采用高崩溃污染率抗差估计方法，将GPS网由WGS－84坐标系下的坐标转换成局部坐标系下的坐标，从而不仅能识别不稳定的基准点，而且能对其形变的大小作出近于实际的估计，保证了转换后GPS网的精度及转换坐标的正确性。当基准点中没有粗差时，与最小二乘法的结果一致。最后，给出了应用实

Managing wildlife: A spatial information system for GPS collars data Francesca Cagnacci, Ferdinando Urbano* Centre for Alpine Ecology, Viote del Monte Bondone, 38040 Trento, Italy Received 22 December 2007,-奖学金网; received in revised form 11 January 2008; accepted 14 January 2008 Available online 25 February 2008 Abstract ISAMUD (Integrated System for Analysis and Management of Ungulate Data) is an integrated and modular software platform developed to manage GPS collar data for wildlife management.

管理野生动物：空间信息系统的GPS衣领数据弗兰切斯卡cagnacci ， ferdinando尔巴诺*中心的高寒生态， viote Del Monte的邦多内， 38040 Trento ，意大利收到2007年12月22日；收到的订正形式， 2008年1月11日；接受2008年1月14日在网上提供2008年2月25日摘要 isamud （集成系统的分析和管理的有蹄类动物的资料）是一种集成和模块化的软件平台的开发管理全球定位系统的衣领数据野生动物管理。

The results are suggested that this simulator with dynamic capability is programmable,flexible and verisimilar,which can provide strong support to the detection of the capability of the GPS receiver.

实验结果表明，该方案设计的GPS仿真器信号逼真度高、可编程性强、使用灵活，并具有一定的动态性能，为GPS接收机的性能检测提供了有益的支持。

GPS has been widely adapted as the main positioning tool nowadays after development for more than 20 years with a new generation updating. The applications of areas and prospects dimension of GPS have exceeded its original purpose. It has become a very important technical method and solution way in almost every field of transportation, communication, metrology, aerologic and so on.

全球定位系统GPS作为新一代的卫星导航定位系统，经过二十多年的发展，已发展成为一种被广泛采用的系统，它的应用领域和应用前景已远远超出了该系统设计者当初的设想，目前，它在航空、航天、军事、交通、运输、源勘探、通信、气象等几乎所有的领域中，都被作为一项非常重要的技术手段和方法，用来进行导航、定时、定位、地球物理参数测定和大气物理参数测定等。

figure cadastration ; control ; GPS ; lead of electronic magnetic wave ; lead of measurement of map ; precision

目前，首级地籍控制测量普遍采用GPS技术，加密控制采用电磁波测距导线技术，并有加密控制也采用GPS技

For example, when observation station must coincide with VLBI or SLR station, GPS antenna can't be installed to the sigh board's center of these stations, and under this special circumstance, decentration of observation must be a-dopted..

由于种种条件的限制，在很多情况下GPS天线都无法实现真正的对中，在某些特殊情况下，例如观测站必须与VLBI站或SLR站重合，而又无法在这些站的标志中心安设接收机天线，这就要求进行GPS偏心观测。

GPS satellite precise ephemerides provided by IGS describe there dimension position of GPS satellites in ITRF.

IGS提供的精密星历描述了GPS卫星在地固系中的三维位置。

In this paper the mathematical models and methods for GPS single-point positioning are studied systematically on the theory.All kinds of error correction formulas are studied,such as ironsphere correction,troposphere correction,relativistic effect correction,earth rotation correction ,earth tides correction ,satellites antenna phase center offset correction. GPS single-point positioning programs is coded with pseudoranges and broadcast ephemerides,phases and broadcast ephemerides,and phases and precise ephemerides.And a great amount of computation has been done using the data collected .The results are computed with the 24 hour pseudoranges observation data before and after the canceling of the SA.

本文从理论上系统地研究了GPS单点定位的数学模型和方法，研究了各项误差改正公式，例如电离层改正、对流层改正、相对论周期部分改正、地球旋转改正、地球固体潮改正、卫星天线相位中心偏差改正；编写了伪距与广播星历、相位和广播星历及相位和精密星历的定位程序，并使用有关数据进行了大量的计算工作。

Originally, GPS was used as a tool of establishing the precision class of geodetically networks and various of controlling networks .With the development of GPS techniques, great changes have taken in every fields of surveying and mapping.

作为较早采用GPS技术的领域，在测量中，它最初主要用于高精度大地测量和控制测量，建立各种类型和等级的测量控制网；现在，它除了继续在这些领域发挥着重要作用外，还在测量领域的其它方面得到充分的应用，如用于各种类型的施工放样、测图、变形观测、航空摄影测量、海测和地理信息系统中地理数据的采集等。

It is not ignorable that there is base datum with less precision to support the network computation and adjustment of a constrained GPS network.

在处理如GPS控制网的约束平差或以GPS测定导线网的方位角的平差计算中，是否考虑起始数据的误差给平差结果及其精度评定带来的影响是不可忽视的。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。