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首页> 外文期刊>電子情報通信学会技術研究報告. 衛星通信. Satellite Telecommunications >Development of GNSS Position Accuracy Simulation System (GPASS) Using 3-D Building Maps, Signal Propagation Model and Receiver Correlator Model
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Development of GNSS Position Accuracy Simulation System (GPASS) Using 3-D Building Maps, Signal Propagation Model and Receiver Correlator Model

机译：使用3-D建筑地图，信号传播模型和接收器相关器模型开发GNSS位置精度模拟系统（GPASS）

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摘要

Current navigation systems provide position information using GNSS, of which position accuracy is gradually improving by the developments of receiver algorithm and antenna performance. However, the GNSS accuracy is very limited in dense urban areas because the signals are blocked, reflected, or diffracted by buildings. This paper describes the development and validation of GPASS (GNSS Position Accuracy Simulation System) that can simulate GNSS position accuracy for dense urban areas using 3-D building maps, signal propagation model and receiver correlator model. The feasibility tests of our system were carried out for the area around the Tokyo Metropolitan Government Building famous for its skyscrapers, and a good agreement was observed between the simulation results and in-situ data. The GPASS is expected to enable the evaluations of navigation serviceability on the spatial and temporal basis, which will be a useful reference for improving the service quality.
机译：当前的导航系统使用GNSS提供位置信息，其位置精度随着接收器算法和天线性能的发展而逐渐提高。但是，由于信号被建筑物遮挡，反射或衍射，因此在人口稠密的城市地区，GNSS精度非常有限。本文介绍了GPASS（GNSS位置精度模拟系统）的开发和验证，该系统可以使用3-D建筑地图，信号传播模型和接收器相关器模型来模拟密集城市地区的GNSS位置精度。我们的系统在以摩天大楼闻名的东京都政府大楼周围地区进行了可行性测试，并且在模拟结果和现场数据之间观察到了很好的一致性。期望GPASS能够在时空基础上评估导航的可服务性，这对于提高服务质量将是有用的参考。

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