Some operators opted for triangulation technology, which determines the location of the handset by comparing the signals received by different base-stations.
一些运营商采用了三角定位技术，此技术通过比较不同基站接收的手机信号来确定手机所处位置。
2
On the base of analyzing the traditional methods of making polygon node, this paper puts forward a new method to automatically create node based on Triangulation Theory.
在传统多边形内点自动生成算法的基础上，提出了一种基于多边形三角化理论的内点自动生成算法。
3
The influence of the side-refraction in desert regions on the absolute terms of the azimuth conditions and base-line conditions of triangulation chains is expressed as systematic errors.