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Multi-Magnetometer Based Perturbation Mitigation for Indoor Orientation Estimation

机译：基于多磁强计的室内定向估计扰动缓解

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摘要

Determining orientation with respect to a known reference plays an important role in almost all modes of navigation. As the sensors required for measuring magnetic field have found their way into portable navigation devices, researchers have started investigating their application to orientation estimation in different environments. Nevertheless, the success of these sensors for orientation estimation is conditioned by their capacity to sense Earth's magnetic field in environments full of magnetic anomalies like urban canyons and indoors. These artificial fields contaminate Earth's magnetic field measurements, making orientation estimation very difficult in heavily perturbed areas. To overcome the effect of magnetic anomalies, a perturbation mitigation technique is proposed that utilizes multiple magnetometers. This mitigation technique is then used for estimating Earth's magnetic field indoors thus providing users with better magnetic orientation estimates. Performance of the proposed mitigation technique is assessed for pedestrian navigation in a shopping mall.
机译：确定相对于已知参考的方向在几乎所有导航模式中都起着重要作用。由于测量磁场所需的传感器已进入便携式导航设备，研究人员已开始研究其在不同环境中的方位估计中的应用。然而，这些传感器用于定向估计的成功取决于它们在充满磁异常的环境（如城市峡谷和室内）中感测地球磁场的能力。这些人工场污染了地球的磁场测量值，使得在严重扰动区域中的方位估计非常困难。为了克服磁异常的影响，提出了一种利用多个磁力计的扰动缓解技术。然后，这种缓解技术用于估算室内的地球磁场，从而为用户提供更好的磁场方向估算。针对购物中心中的行人导航评估了所提出的缓解技术的性能。

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  • 来源
    《Navigation》 |2011年第4期|p.279-292|共14页
  • 作者

    MUHAMMAD HARIS AFZAL; VALERIE RENAUDIN; GERARD LACHAPELLE;

  • 作者单位

    Position Location and Navigation (PLAN) Group, University of Calgary, Calgary, Alberta, Canada T2N 1N4;

    Position Location and Navigation (PLAN) Group, University of Calgary, Calgary, Alberta, Canada T2N 1N4;

    Position Location and Navigation (PLAN) Group, University of Calgary, Calgary, Alberta, Canada T2N 1N4;

  • 收录信息 美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
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