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Application of GPS to a railroad navigation system using two satellites and a stored database
Application of GPS to a railroad navigation system using two satellites and a stored database
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机译:GPS在使用两颗卫星和一个存储数据库的铁路导航系统中的应用
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摘要
A method for determining the location of a vehicle whose movement is constrained to a route whose location is fixed and known, such as a train. An initial estimate of location is made based upon information contained in a route database based on distance traveled from a reset point. The accuracy of the estimated vehicle location is improved through use of just two global positioning satellites.
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