GPS precise positioning: The adoption of global leading GPS technology provides high sensibility. Through mobile APP, it is able to get the stick user's location at any time.

GPS精准定位：采用全球领先的GPS定位系统技术，高灵敏度性，通过手机APP，随时随地掌握手杖使用者的位置，体现关爱之心。

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GPS receiver can use the fictitious GPS signal to conduct precise positioning.

GPS接收机可以利用这一虚拟的GPS信号进行精密定位。

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This paper has the directive significance for improving GPS positioning precision and expanding the GPS application fields in precise engineering surveying.

通过文章介绍，在精密工程测量中必将对GPS定位精度提升及扩展GPS的应用领域有一定的指导作用。

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For example, researchers in Arizona are using real-time kinematic global positioning systems, an ultra-precise version of GPS that can measure positions with sub-inch accuracy levels, to control weeds in cotton fields with steel cultivators.

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