On the assumption that distance measurement error of anchor nodes is equal, the normalizing GDOP value and average GDOP value of unknown nodes'locating error based on interior node and exterior node of anchor nodes swarm were calculated out. It was verified that the node locating accuracy is related with anchor nodes'topology. The conclusion is that the nodes inside the anchor nodes have higher locating precision.
采用蒙特卡罗仿真方法，仿真次数100，设定锚节点的测距误差相同，取锚节点数为3、5，对基于锚节点群内点、外点的未知节点定位误差的归一化GDOP值和GDOP均值求解，结合质心算法原理，验证了自身节点定位精度与确定该节点位置的锚节点的几何关系密切相关，得到锚节点群内点定位精度高的结论。
Though from different denominations, races, and ages, everyone was in one heart throughout the English, Mandarin, Youth and Children GDOP meetings. They were committed to one desire - praying and interceding in one accord for the biblical hope for Christ's glory and the transformation of all nations.
虽然来自不同的宗派、种族和年龄，可是，无论是参与英语、华语、青年或儿童祷告大会的基督徒，都怀着同一的心志，那就是为着基督的荣耀和万国的转化，大家齐聚在神的施恩宝座前，彼此代祷，互相代求。
The difference between the elevation and azimuth angle of topmost and lower satellites also are influence factors of GDOP.
通过计算和实验发现，在GPS系统的定位过程中，有一组最优的、由4颗卫星组成的几何配置星座，此时对应的几何精度衰减因子最小，为1.5812。
In view of the positioning accuracy measurement index of GDOP in the GPS, analyzed its diagnosis significance of ⅱ ill-conditioned, and indicate the ill-condition essence in the GPS, and provide the important basis for taking the effective action to enhance positioning accuracy.
针对GPS定位中几何精度因子的定位精度度量指标，分析了它的Ⅱ类病态性的诊断意义，揭示了GPS定位中病态性的实质，为提高定位精度采取有效措施提供了重要依据。
GDOP Analysis Based on the Alpha System of Some Certain Sea Area
Alpha系统在我国某海域的GDOP值分析
The availability of the system is validated through the simulation of the area and six representative cities about Geometric Dilution Of Precision (GDOP) and N Asset Coverage.
通过对所选区域及六个有代表性城市的几何精度衰减因子（GDOP）和可见星数进行仿真，验证了系统的可用性。
Finally, the contours of GDOP under various conditions in the specific surveillance region and the influence with basic line and the depth and so on are drawn by computer simulation.
最后通过仿真，分析不同基阵布阵情况下的受控区域内GDOP的分布情况及基线和目标的深度等对GDOP的影响。
Moreover, its coverage performance is also evaluated under some factors, such as the geometric dilution of precision (GDOP), orbital perturbation, space transmission loss and eclipse.
并进一步在考虑摄动影响、空间传输损耗等因素的条件下评估了此星座的导航性能。
The parameter of the constellation is optimized with the goal that the GDOP should be minimum.
并以GDOP最小化为目标，对该系统的星座参数进行了优化。
Applied the theory of ⅱ - ill conditioning diagnosis to analyze ill conditioning diagnosis meaning of GDOP (geometric dilution of precision), and presented a successive substitution algorithm to GDOP.
基于Ⅱ类病态性诊断理论，分析了几何精度因子的病态性诊断意义，并给出了它的递推算法。
Geometry dilution of position (GDOP) is very important in the navigation precision of territorial radio navigation system.
区域无线电导航系统中，几何精度因子（GDOP）对系统的定位精度有着非常重要的影响。
A Mobile Station Locating Method for a Cellular Communication System Based on GDOP
利用GDOP对蜂窝移动通信系统移动台定位的方法
This paper presents the arrangement strategy of ground stations for a regional positioning system and derives the formulas for calculating GDOP with 4 grounds stations. With the flying users'known altitude, the highest positioning precision can be acquired quickly.
该文提出一种区域定位系统n个地面测站的布站策略，给出4测站时几何精度因子计算公式，从而可快速获得最佳定位点位置。
In order to improve the positioning precision of the pseudolite, after studying the GDOP, in this paper we find a kind of method that used for computing distribution of pseudolite based on weighted GDOP (WGDOP).
为了更好地提高伪卫星的定位精度，从GDOP值的研究入手，得出一种基于加权GDOP（WGDOP）值的地面伪卫星定位误差算法。
In this paper, the GDOP (geometric dilution of precision) expression of area navigation system is deduced.
本论文推导了区域导航定位系统的几何精度因子，并用矩阵理论对其最小值及其随导航台个数增加而减小进行了证明。
The GLONASS system simulation model is set up, and GLONASS GDOP is studied.
建立了全球导航卫星系统（GLONASS）空间卫星系统的简易型数学模型，对GLONASS系统的GDOP进行了初步分析。
Analysis and Simulation of the GDOP of Satellite Navigation
卫星导航几何因子的分析和仿真
The GDOP simulation show that the system location precision is satisfied.
精度仿真结果表明该系统的定位精度是比较满意的。
Study of Positioning Error of Pseudolite in the Radio Navigation System Based on GDOP
无线电导航系统中基于GDOP的伪卫星定位误差研究
As GDOP and SNR influence the GPS result obviously, the relationships between them and the precision of GPS were researched separately based on GPS data.
根据实测GPS数据，选取了对定位精度影响较大的两个因素GDOP和SNR，对它们与定位精度之间的关系分别进行研究；