Under the condition of re-observation, the relative errors of measuring area with the pocket GPS could reach 2.0% , which could meet the precision demand of measuring area in forestry practice.
在重复观测的条件下，手持GPS测量面积的相对误差可以达到2.0％，基本满足林业生产中测量面积的精度要求。
The GPS observation shows that the relative motions between the blocks in North China have dynamic variation.
GPS观测结果显示： 华北地区各块体间的相对运动存在动态变化。
The process of relative positioning using the GPS module, under the schedule of C/OS-II operating system, is analyzed, with a brief introduction to the display interface of the network status.
分析了在C/OS-II操作系统的调度下，传感器节点利用GPS模块进行相对定位的流程，并对网络状态的显示界面作了相应介绍。
At last how effectively to make use of simultaneously observed data of known points in classic relative stationary positioning of GPS is got.
得到GPS经典相对静态定位有效利用原有对已知点同步观测数据的方法。
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。
With the data of three observation periods from the GPS deformation monitoring network of a dam, the clustering analysis is conducted on the relative stability of quasi-stable points of the network.
结合某大坝GPS变形监测网的3期观测数据，对GPS变形监测网拟稳点的相对稳定性进行了聚类分析。
To determine the relative positions of them, the GPS technique, traditional direction and range survey, and precise leveling are adopted in this paper.
本文采用GPS技术及常规的方向、距离和精密水准测量对三个站进行了空间归心测量。
The relative positioning precision based on GPS carrier-phase measuring can achieve minimeter level.
研究了GPS高精度载波相位测量，及在航空动态定位中应用的理论、方法和技术。
The relative positioning precision based on GPS carrier-phase measuring can achieve minimeter level.
研究了GPS高精度载波相位测量，及在航空动态定位中应用的理论、方法和技术。
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