Abstract
Global Navigation Satellite System (GNSS) positioning is a widely used and a key intelligent transportation system (ITS) technology. An automotive navigation system is necessary when driving to an unfamiliar location. One difficulty regarding GNSS positioning occurs when an error is caused by various factors, which reduces the positioning accuracy and impacts the performance of applications such as navigation systems. However, there is no way for users to be aware of the magnitude of the error. In this paper, we propose a cognitive navigation system that uses an error map to provide users with information about the magnitude of errors to better understand the positioning accuracy. This technology can allow us to develop a new navigation system that offers a more user-friendly interface. We propose that the method will develop an error map by using two low-cost GNSS receivers to provide information about the magnitude of errors. We also recommend some applications that will work with the error map.
Highlights
Many types of navigation services, such as applications on smartphones and automotive navigation systems, are becoming popular
We mentioned a cognitive navigation system inspired by the CogInfoCom that extends human cognitive capabilities and would even enable life support
We described details of the error map as the technical basis of a cognitive navigation system
Summary
Many types of navigation services, such as applications on smartphones and automotive navigation systems, are becoming popular. These services play an important role in intelligent transportation systems (ITSs) They require highly accurate positioning, especially in urban areas. RTK accuracy depends on the environment, such as when buildings shadow signals from a GNSS satellite, so it is difficult to realize accurate navigation with RTK positioning in a city’s downtown area. An elevation angle mask (Misra and Enge, 2001) is a technique that provides accurate position information in cities by employing satellites that exist at higher-elevation angle spaces. Such methods for selecting satellites sometimes reduce the number of usable satellites, so accuracy does not increase as expected. The accuracy of GNSS positioning in urban areas is challenging in general
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