达到高精度的关键是应用了伪随机码扩谱及差分定位技术。
Spread-spectrum PN code ranging and differential Positioning technology are used to make it possible to reach such accuracy.
简要介绍了GNSS差分定位原理，遥、外测系统组成及关键技术。
The GNSS difference locating theory, telemetry and orbit measurement system and key technologies are described.
为达到实时应用的效果，本文利用了差分定位方式，对应的观测时间就可减少到1分钟以内。
In differential mode, the effects of both SA and ionosphere are substantially removed, and the correlation time is reduced to about 1 minute.
针对虚拟参考站网络差分定位的关键技术，提出了虚拟相位观测值及差分改正信息生成的算法模型。
The key technique of network differential positioning based on virtual reference station, the algorithm the generation of virtual phase observation and differential corrections was proposed.
研制开发了GPS相位平滑伪距差分定位软件，该软件具有数据输入、计算、编辑、分析与输出等功能。
The positioning software of phase smoothing PDGPS, which have the functions of inputting, calculating, editing, analytic and outputting of data, is developed successfully.
采用GPS静态差分定位技术的滑坡监控系统，要求回收各个测点的GPS观测数据，然后在监控中心完成差分解算。
In landslide monitoring system adopting the technology of GPS difference position, the (monitoring) center must get data from every survey point and then accomplish GPS difference position.
本文在对现有的GPS差分技术进行分析的基础之上，提出了一种适合北斗导航定位系统的差分定位技术，以提高其定位精度。
This article analyses current GPS difference technology and puts forward a difference position technology which can apply in BEIDOU system for improving the position precision.
所谓“零基线”检验，就是将两台GPS接收机通过“功率分配器”连接到同一副gps接收机天线上，并进行差分定位测量。
"Zero-baseline Test" refers to the experiment that links two GPS receivers with the same antenna element through a "Power distributor" and conduct the difference positioning.
差分gps定位技术是通过基站与移动站之间的空间相关性，来消除公共误差部分，以提高定位精度。
Differential GPS can eliminate the common error to improve the positioning precision by a spatial correlation between the base station and the mobile station.
差分gps是一种十分有效的改进和提高GPS导航定位精度的方法。
DGPS is used to effectively compensate for some errors in the GPS position solution, to improve its accuracy.
该系统通过综合技术将惯性导航系统与差分GPS有效组合，不仅定位精度高、工作可靠，而且输出信息实时、连续；
The system, by effectively integrating INS/DGPS, is not only with high positioning accuracy and working reliability, but also outputs real time and continuous information.
研究了一种可用于提高GPS定位精度的差分gps (DGPS)数字信标接收机的设计和研制技术。
A design technique of a Differential Global positioning System (DGPS) digital beacon receiver is presented which can be used to improve the positioning precision.
差分gps技术虽然可以提高GPS定位的精确度，但缺乏对环境的适应能力。
Differential GPS technique can improve the positioning precision, but it's environmental adaptability is restricted.
特别是差分技术的引进和使用，更是带动了浅滩海勘探定位方法的蓬勃发展。
Especially, the introduction and the use of the difference technique develop exploration navigation method of the shoal sea.
在没有选择可用性条件下，差分gps定位精度完全取决于电离层的空间不相关性。
In the absence of the selective availability errors, the positioning accuracy of differential GPS is strongly dependent on the spatial decorrelation of the ionosphere.
海上工程作业中定位测量已由原先的无线电定位逐步过渡到差分GPS定位。
In the operation of offshore engineering, the form of positioning measurement is transferred from radio positioning to differential global position system (GPS) gradually.
为了有效去除高背景磁场对永磁体定位的磁干扰，本文提出了一种高背景磁场下的差分磁定位算法。
This paper reports a differential magnetic localization algorithm in high background magnetic field that interferes localization of permanent magnet.
本文根据近年来海上工程中定位作业的经验，对差分gps定位系统在海上工程中的应用做了较详细的介绍。
The author introduces in detail the gerenal application of GPS in offshore engineering according to his experience on positioning operation in offshore engineering recent years.
与传统方法相比，由于利用了色彩曲线的变化比例的差分思想，克服大部分光照缓慢变化引起的噪声问题，达到实时检测定位的目的。
This method uses advanced processing technique and the variety of color curve to figure out the moving object, resolve the problem that illumination cause and realize the realtime rough detection.
GPS测量，尤其是差分GPS测量，多径信号是主要的误差来源，会引起定位精确度的恶化。
The major error source of GPS systems, especially of differential GPS, is the multipath signals. It will deteriorate the precision of positioning.
在此背景下，差分gps (DGPS)定位、载波相位等技术应运而生并飞速发展。
In this context, a differential GPS (DGPS) positioning, carrier phase technology emerged and rapid development.
本文介绍了实时动态差分gpsRTK技术在杭州湾大桥桥位地形测绘中的实施与原则，并对GPS RTK定位结果进行了精度比较与分析。
This paper introduced the implement and principle of GPS RTK in the topographic mapping of HangZhou bay bridge location, compared and analyzed the precise of GPS RTK pointing result.
利用局域差分GPS进行定位时，只有当流动站位于基准站构成的多边形网内时，才可能得到较高的精度。
The distance from user to reference station influences the positioning accuracy definitively in local area differential GPS.
为了适应现时特种车辆管理系统对车辆GPS定位的精度的需要，并考虑到未来的发展趋势，对差分gps方案进行了介绍。
To meet the requirement of precise GPS positioning in vehicle management system, and also to consider the development in the future, this paper introduces differential GPS projects.
在差分gps系统的应用中，基准站的精确定位是一个重要问题。
It is important to locate the base station in DifferentialGPS system precisely.
简述了G PS（PPK）的测量原理，探讨了差分GPS（PPK）测量定位在矿山测量中的应用。
This paper expounds the surveying principles of GPS (PPK), and probes into the application of GPS (PPK) surveying and positioning in the mine surveying.
并提出用差分gps配合声纳测深进行动态连续定位，从而建立海底地形模型的设想。
The author proposed a tentative idea about forming the model of submarine terrain by the model of DGPS combining with Sonar system.
对于R波，采用二级差分和极值方法定位，对QRS波群采用一阶导数与二阶导数并用算法进行检测。
The detection algorithm that adopts tow-level finite difference and extremal theory is used to locate the R wave and the one-level and tow-level derivative methods is used when detect QRS wave.
对于R波，采用二级差分和极值方法定位，对QRS波群采用一阶导数与二阶导数并用算法进行检测。
The detection algorithm that adopts tow-level finite difference and extremal theory is used to locate the R wave and the one-level and tow-level derivative methods is used when detect QRS wave.
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