查询词典 GPS

Some error checking method commonly used in GPS data communication are analyzed in this paper such as sum check and Cyclic Redundancy Check,detailed calculation realization is also given in C l.

本文针对GPS数据通讯中目前常用的校验和校验以及循环冗余校验，从校验原理入手，具体给出其计算方法和C语言实现。

I might as well have a GPS chip in my skin, but no, I have the Internet.

我可能也有一个GPS芯片，在我的皮肤，但没有，我已经上网。

The GPS is a network of more than 30 satellites circling the Earth twice a day.

GPS是一个由30颗卫星组成的网络，每天环绕地球两次。

After analyzing the basic information of the ecological engineering construction, the spatial and temporal scale, and monitoring index, the 1m IKONOS image and 2.5m SPOT5 image were introdueced as data sources, the methodology of RPC modeling and GCP optimitiaztion as modification to the interpretation, the AHP used in determining combination of multi-light specrum and the whole band wave, the virtue reality technique monitoring the classification and recognation, variable cluster allocation coeffiecents and its adaptation in spatial and imaged attributs in the research on water and siol conservation subtracting the least pathches of the area. The final stage is to subtract the information via human and computer interactive to interpret and monitor the classification in the study assisted with GPS, field identification and construction supervision.

在对研究样区水土保持生态建设情况和监测尺度及监测指标分析的基础上，选择1m分辨率的IKONOS影像和2.5m分辨率的SPOT5影像为监测遥感数据源；采用"RPC模型+GCP优化"方法进行高分辨率遥感影像正射纠正；用主成分分析法进行遥感影像全色波段与多光谱图像融合；用虚拟现实技术进行高分辨率遥感影像监督分类模板定义研究，用不同大不的聚类处理参数并在研究水土保持生态建设措施的空间特征和影像特征的基础上，确定提取水土保持生态建设信息的最小图斑参数值；最后用全数字人机交互解译和监督分类提取研究样区水土保持生态建设信息，并结合GPS现场验证和工程监理成果对监测结果进行分析评价。

WGS-84 geodetic latitude and longitude from GPS was projected by similarity transformation method, and they were transformed coercively to realize coordinate matching.

并用相似变换法将GPS接收到的WGS-84大地经纬度高斯投影后强制转换统一，以实现坐标匹配。

In the "close shot target three-dimension measure technology" from country 863 project, the main function of GPS conceiver is to determine the trace of vehicle-carried movement, and provide the geography coordinate frame of scanner.

在国家信息领域863项目"近景目标三维测量系统"中，GPS接收机的主要作用是确定车载运动轨迹、提供扫描仪的地理坐标框架。

Some technical problems, such as multi-scale data processing of digital map for transportation GPS service system, are solved by conflation which unites different data source to a new optimal road network data set.

针对交通运输GPS服务系统电子地图制作中多尺度路网的数据处理、高分辨率卫星遥感数据的几何校正、路网提取等技术问题，利用数字合并技术将不同的数据源合并为一个新的、最优的路网数据集，新和优表现在空间和属性两个方面。

Two common methods of GPS signal coarse acquisition are analyzed and compared in this paper, and an optimized method is adopted. Two common algorithms of calculating fine frequency are analyzed and compared and the conics fitting is designed to calculate the fine frequency. Based on the distributing character of Doppler frequency shift, swing frequency style of Doppler frequency shift search is employed.

对比分析了两种常用的GPS信号粗捕获实现方法，设计了一种优化的实现方法；同时对常用的两种精细载波频率算法进行了比较分析，设计了一种二次曲线拟合的方法计算精细载波频率；基于多普勒频移的分布特点，改变以往顺序搜索的方式，采用跳频搜索的方法。

SiRF develops and markets semiconductor and software products that are designed to enable location-awareness utilizing GPS and other location technologies, enhanced by wireless connectively capabilities such as Bluetooth, for high-volume mobile consumer devices and commercial applications.

SiRF 研发及销售GPS定位技术的半导体及软件产品，加以无线连接技术如蓝牙科技，适用于高容量手机客户解决方案及商务应用。

The results show:1, GPS is a valuable tool of observing water vapor in atmosphere consecutively.

研究表明： 1、GPS是一种连续监测大气水汽的有效手段。

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。