On the basis of above, the technique of differential GPS (DGPS) is gradually perfected.
并在此基础上逐步完善了差分gps技术(DGPS)。
In this context, a differential GPS (DGPS) positioning, carrier phase technology emerged and rapid development.
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。
Differential GPS technique can improve the positioning precision, but it's environmental adaptability is restricted.
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。
The distance from user to reference station influences the positioning accuracy definitively in local area differential GPS.
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 major error source of GPS systems, especially of differential GPS, is the multipath signals. It will deteriorate the precision of positioning.
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 application of differential GPS in grain production figure shows that differential GPS technology can meet the need of grain production estimate.
差分GPS在谷物产量图生成中的应用表明，差分GPS技术能满足田间谷物测产的需要。
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。
In addition, when gully is measured by the traditional technology, such as erosion needle and differential GPS, the safety of monitoring work-ers should be verified.
另外，用侵蚀针等传统技术方法以及差分gps对崩岗进行监测时，要注意监测人员的人身安全。
Using GPS observation data from differential GPS reference stations, several errors, which can't modeled, were solved and sent to user around these reference station.
局域差分gps认为在距离参考站较近的区域内，观测误差具有相关性。参考站将观测量与理论值之差作为差分改正数发送给用户进行差分改正。
In the absence of the selective availability errors, the positioning accuracy of differential GPS is strongly dependent on the spatial decorrelation of the ionosphere.
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。
The car will be guided by a differential GPS system that corrects errors arising in global positioning satellite signals as they travel through the ionosphere and troposphere.
这款车将遵循差分式全球定位系统以纠正它在电离层和对流层行驶中全球定位卫星信号引起的误差。
The monitoring center differentially corrects the user's position data and gives the user's position with high precision just like pseudo range differential GPS system dose.
在监测中心对用户的位置数据进行差分修正，给出与伪距修正同样的高精度用户位置数据。
Thee car will be guided by a differential GPS system that corrects errors arising in global positioning satellite signals as they travel through the ionosphere and troposphere.
翻译：这款汽车将由一个特异的GPS系统来导航，该系统能够纠正全球定位卫星信号在穿越电离层和对流层时出现的错误。
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.
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。
In order to accurately evaluate vehicle movement stability, a test system for vehicle movement stability based on real time kinematic (RTK) differential GPS technology is successfully developed.
为了准确评价汽车运动稳定性能，成功研制了一种基于rtk全球定位技术的检测系统。
Then, the troposphere pseudo-range remaining error (TDRE) of differential GPS (DGPS) is defined, its mathematical model is constructed, and the computer simulation of TDRE of DGPS is carried out.
定义了差分GPS（DGPS）的对流层伪距残差的概念，并建立了数学模型。 用计算机对DGPS的对流层伪距残差进行仿真。
There are three methods for the determination of the acceleration based on differential GPS carrier-phase technology: position differentiating, velocity differentiating and direct carrier method.
利用GPS差分技术确定载体运动加速度，其方法有三种：位置微分法、速度微分法和加速度直接解算法。
JPALS, designed and developed by Raytheon under a U.S. Navy contract, is an all-weather, all-mission, all-user landing system based on local area differential Global Positioning system (GPS).
由雷神公司在美海军的合同下设计并开发的联合精确进场和着陆系统(JPALS)，是一种全天候、全任务、全用户的着陆系统，基于当地的全球定位系统(GPS)。
JPALS, designed and developed by Raytheon under a U.S.Navy contract, is an all-weather, all-mission, all-user landing system based on local area differential Global Positioning system (GPS).
由雷神公司在美海军的合同下设计并开发的联合精确进场和着陆系统(JPALS)，是一种全天候、全任务、全用户的着陆系统，基于当地的全球定位系统(GPS)。
This paper analyzes the components and features of GPS, discusses differential dynamic positioning technology with GPS in real time and its error sources.
分析了全球定位系统GPS的组成及功能，探讨了GPS实时差分动态定位技术及其误差来源。
This paper studies the design and realization of GPS differential positioning computer fault checker.
论文探讨了一种GPS差分计算机故障检测仪的设计及实现。
For the test requirement of precision agriculture, differential systems of GPS position were adopted to increase the position accuracy of GPS system.
为了精准农业技术示范试验需要，采用了GPS定位差分系统，以提高GPS系统定位精度。
This paper studies the orbit determination of LEO satellites using GPS receivers of single frequency in condition of not depending on GPS differential reference stations.
研究在不依赖于GPS差分基准站的情况下，利用单频gps接收机对低轨卫星进行定轨的算法。
In the operation of offshore engineering, the form of positioning measurement is transferred from radio positioning to differential global position system (GPS) gradually.
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 application of vehicle navigation in city area, Multi-path errors are the main error source of GPS high-precision differential positioning in a near distance.
在城市车辆导航过程中，多径误差是近距离差分gps等高精度定位的主要误差源。
The method of RVD relative navigation based on relative differential pseudo range of GPS was studied.
研究基于GPS相对伪距差分技术的RVD相对导航方法。
The result of positioning precision test shows that the positioning precision of the GPS real time differential system based on GPRS has attained cm-level.
实际测试结果表明：基于GPRS的GPS实时差分系统达到了厘米级定位精度。
The result of positioning precision test shows that the positioning precision of the GPS real time differential system based on GPRS has attained cm-level.
实际测试结果表明：基于GPRS的GPS实时差分系统达到了厘米级定位精度。
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