For this project, I chose to build a tool to track a series of global positioning system (GPS) waypoints and compute things like distance to the previous or next waypoint.

对于此项目，我选择构建一个工具来跟踪全球定位系统(GPS)路标点(waypoint)和计算到前一个或后一个路标点的距离。

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KJ271 underground staff positioning system with the features of far transmission distance, high flow, low-power, high-speed identification of mobile identity, fast identification and stability.

KJ271矿用人员定位系统具有传输距离远、大流量、超低功耗、高速识别移动标识物、快速的识别及其稳定的特点。

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The BD receiver can measure the pseudo distance between the satellite and the user, so that it can work in the passive positioning system.

目前已经能够研制出测量用户至卫星伪距信号的“北斗”用户接收机，此款接收机可以工作在无源定位的情况下。

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Its report suggested every car should be fitted with a Global Positioning System (GPS), which measures its distance from three or more satellites, and using triangulation, can pinpoint the position of a car within five or 10 metres.

BBC: Tracking the future of driving