OpenGTS(Open sourced GPS Tracking System)提供一个基础框架用于创建属于你的基于Web的GPS跟踪系统。它当前使用Google Maps来mapping。并能够通过插件增加对各种GPS跟踪设备的支持-OpenGTS™ was developed from the need for a simple web-based platform that can provide GPS tracking for entry-level commercial

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国际GPS服务的技术文档，涉及各种改正模型的详细数学公式，数据处理发展的历史等等，GPS数据处理的入门级材料-International GPS service technical documentation, involving a variety of detailed mathematical model to correct the formula, data processing and so the history of the development, GPS data proce