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首页> 外文期刊>ETRI journal >Performance Enhancement of Low-Cost Land Navigation System for Location-Based Service
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Performance Enhancement of Low-Cost Land Navigation System for Location-Based Service

机译：基于位置服务的低成本陆地导航系统的性能增强

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摘要

This work demonstrates a dead-reckoning (DR) scheme for a low-cost land navigation system and a DR/GPS system design using the sigma point Kalman filter (SPKF). Through an observability analysis and some simulations, it is shown that the performances of a stand-alone DR system and DR/GPS system can be improved by employing the proposed DR scheme and SPKF. By using the designed DR scheme and filter, the stand-alone DR system does not have any undetectable errors occurring on the curve trajectory. And the DR/GPS system can provide a stable and seamless navigational solution even in the case where the initial heading estimation error is large, such as 160 degrees, or when the GPS signal is unavailable due to tunnels, buildings, and so on. Simulation results indicate a satisfactory performance of the proposed system.
机译：这项工作演示了低成本陆上导航系统的停泊重推（DR）方案以及使用sigma点卡尔曼滤波器（SPKF）的DR / GPS系统设计。通过可观察性分析和一些仿真，表明采用所提出的DR方案和SPKF可以提高独立DR系统和DR / GPS系统的性能。通过使用设计的DR方案和滤波器，独立的DR系统不会在曲线轨迹上发生任何不可检测的错误。并且，即使在初始航向估计误差较大（例如160度）或由于隧道，建筑物等导致GPS信号不可用的情况下，DR / GPS系统也可以提供稳定且无缝的导航解决方案。仿真结果表明所提出系统的性能令人满意。

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