On the Needlessness of Signal Bandwidth for Precise Holographic Wireless Localization
On the Needlessness of Signal Bandwidth for Precise Holographic Wireless Localization
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DOI：
10.1109/eurad48048.2021.00059
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发表时间：
2021-01
期刊：
影响因子：
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通讯作者：
Melanie Lipka;S. Brückner;Erik Sippel;M. Vossiek
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文献类型：
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作者：
Melanie Lipka;S. Brückner;Erik Sippel;M. Vossiek
微波定位系统为室内环境中的应用提供了多方面的优势，在室内环境中，必须手牵手进行高自由度的移动和稳健的跟踪。然而，可靠的实时跟踪需要高更新率和准确定位。但是由于法律的要求，带宽受到限制，因此可实现的范围和多径分辨率受到限制。本文研究了一种基于全息卡尔曼滤波的微波定位系统的定位性能。在工业场景中的准确性进行了验证，持有严重的多径使用24 GHz的调频连续波系统。基于实验结果，它表明，全息无线定位技术，使三维电磁精度定位在很大程度上不受选定的信号带宽。这种独特的属性是一个很大的优势相比，经典的无线定位方法的基础上的扩展。
Microwave localization systems offer manifold advantages for applications in indoor environments where high freedom of movement hand-in-hand with robust tracking is mandatory. However, reliable live-tracking demands for high update rates and accurate positioning. But due to legal requirements the bandwidth is restricted and therefore the achievable range and multipath resolution is limited. In this paper, the performance of a holographic, Kalman filter based localization approach in microwave localization systems with reduced bandwidth is investigated. The accuracy is verified in an industrial scenario, holding severe multipath using a 24 GHz frequency-modulated-continuous-wave system. Based on experimental results it is shown that the holographic wireless localization technique enables 3D em-precision localization largely unaffected by the chosen signal bandwidth. This unique property is a great advantage compared to classic wireless locating approaches based on multilateration.