In operation part, the installation of PDA software, establishment of base station, solution of transformation parameters, operation of moving points, point setting-out etc. were explained in detail.

其中操作部分对PD A上的软件安装、基准站的建立和转换参数的求解、移动站的操作、点放样等方面进行了详细的说明。

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In a mobile communication system, signals which are transmitted from mobile stations moving relative to a base station are subject to a Doppler effect.

在移动通信系统中，从相对基站运动的移动台发射的信号受到多普勒效应的影响。

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They showed how observing someone moving from base station to base station indicated the individual was on the move and how that information could be linked to traffic cameras, such as those in Denver, which are now accessible via the Internet.

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