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。
When the intensity of network externality is large enough, equilibrium results will be the same as the case of perfect competition, firms can not reap super profits by differential positioning.
当存在足够大的网络外部性强度时，均衡结果将与完全竞争市场的情形相同，厂商不能通过差异化定位获取超额利润。
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 key technique of network differential positioning based on virtual reference station, the algorithm the generation of virtual phase observation and differential corrections was proposed.
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。
Spread-spectrum PN code ranging and differential Positioning technology are used to make it possible to reach such accuracy.
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.
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。
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