查询词典 GPS

In this paper, the basic knowledge of GPS, CORS have been introduced briefly, and the theory and methods of refining the local geoid based upon GPS or CORS have been discussed in detail.

本文首先介绍了GPS、CORS的基本知识，详细阐述了基于GPS技术的昆明市大地水准面精化理论和方法，并利用多年基础测绘资料，确定了昆明市1000平方公里范围内数字高程异常等值线。

GPS sonobuoys are the main components of the high precision underwater DGPS positioning system. They are positioned in real time by the dynamic GPS positioning technique, meanwhile to establish the surface measurement base-line for underwater positioning.

GPS声纳浮标是水下DGPS高精度定位导航系统的主要组成设备，是通过动态GPS定位技术对其进行实时定位，为水下定位建立海面测量基准。

The lady took out an article wrapped by a snot-rag rockily from her pocket, untied the snot rag slowly, it was a GPS inside the snot –rag."salted people owns GPS." She calculated for a while, and said:" altitude is 678 meters, north latitude is XX, and we are here."

大娘从兜里颤颤悠悠地套出一件手绢包着的物品，慢慢的解开手绢，手绢里包着的是一个 GPS ，&老驴都装备了 GPS 了&，计算了一下说道：&海拔高度678米，东经 xx 度，北纬 xx 度，我们在地图的这里。&。

This paper focuses on the precise orbit determination problem of the Low Earth Orbiters using double-frequency observations of the Global Position System. A simulation platform is built up, which is used to generate the satellites-to-satellites tracking data, as a tool to validate the algorithm developed for the future application of GPS sensors on the LEOs.

本文结合最近几年来国外低轨卫星GPS定轨技术的最新发展情况，研究了基于双频GPS测量技术的低轨卫星精密几何定轨问题，建立了低轨卫星GPS定轨的仿真平台，并用之作为关键技术的验证手段，研究了旨在获得分米精度的快速几何定轨算法和结果精度评估方法。

Real GPS observations were used to test the performance of the proposed filter.The results show that the method has the potential to improve the quality of GPS results,which can successfully extract the desired vibration signals from the point coordinat...

对GPS实际观测资料进行分析，结果表明：采用该方法不仅能从坐标序列中成功提取结构振动信息，也能正确分离载波相位双差观测值的残差序列中的结构振动和多路径效应影响，因而在提高GPS定位精度上具有较大的应用潜力。

GPS tracking station at Zhongshan Station in Antarctica to establish China's first annual GPS tracking station, mapping team will be wintering in the Zhongshan Station in order to ensure that the satellite tracking station and the new tide gauge stations data and information collection, to achieve a normal and stable operation.

中山站GPS 跟踪站是我国在南极设立的第一个常年GPS跟踪站，测绘队员将在中山站越冬，以确保卫星跟踪站和新验潮站的数据和信息采集，实现正常稳定运行。

The paper introduces the latest development and application in the production of engineering survey technology. GPS allocation technology and the combination of GPS and total station have been widely used in plane surveying of control survey. Electron distance trigonometric leveling can replace third and fourth-order spirit leveling in vertical survey. Data collection, processing and drawing by total station has achieved automation and integration in topographic survey, etc.

随着工程测量技术的发展，控制测量中平面测量已广泛地采用了GPS定位技术、GPS与全站仪相结合的技术，高程测量中电子测距三角高程能代替三、四等几何水准测量；地形图测绘中，实现了全站仪从野外数据采集、处理到绘图过程的自动化和一体化；摄影测量和高分辨率遥感技术在大比例尺地形测图中的应用等。

D dissertation. Based on GPS C/A code signal structure and performance characteristics, traits of aiming interference and jammer are analyzed. The best interference way is that wideband interference of uniform spectrum is made from wideband saw tooth frequency modulation and narrowband frequency modulation.

根据GPS的易受干扰的C/A码信号的特点，分析了对GPS的C/A码的瞄准式干扰、阻塞式干扰及相关干扰的特性，分析得知对GPS的C/A码的最佳干扰是锯齿宽带调频和噪声窄带调频相结合的均匀频谱宽带干扰。

And the GPS IF signal generator platform has been designed by using Nemerix\'s GPS RF chip NJ1006A.

并利用Nemerix公司的GPS射频芯片NJ1006A设计制作了GPS中频信号产生平台。

Needs to be reconstructed as GPS tracking station, based on the international SCAR demand and the

在现有的长城站GPS 国际联测基础上建立全自动的GPS 跟踪站，包括全套GPS 系统安

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。