Theory and Practice of Near-Field Electromagnetic Ranging

机译：近场电磁测距的理论与实践

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This paper illustrates the divergence of phase, signal, andrnenergy velocities in the near field by employing spacetimerndiagrams of the evolution of near-fields. In additionrnthis paper describes near-field link and impedancernrelations a near-field phase diagram for electrically smallrnquadrature transmitters. Near-field physics enables nearfieldrnelectromagnetic ranging systems in a variety ofrnmodes for a diverse range of applications. This paperrnsummarizes recent results applying near-fieldrnelectromagnetic ranging to a Signal-of-OpportunityrnLocation Device (SOLD) implementation. Q-Track testedrnthis system in realistic environments including a multistoryrnbuilding and underground. SOLD yielded an rmsrnaccuracy of 26cm when returning to a calibration pointrnand 46cm rms between calibration points.

机译：本文利用近场演化的时空图来说明近场中的相位，信号和能速的差异。此外，本文还介绍了近场链路和阻抗关系，这是一种用于小型正交发射机的近场相位图。近场物理学实现了多种模式下的近场电磁测距系统，可用于多种应用。本文总结了将近场电磁测距应用于机会信号定位设备（SOLD）的最新成果。 Q-Track在现实环境中测试了该系统，包括多层建筑和地下建筑。当返回校准点时，SOLD的均方根精度为26cm，校准点之间的均方根均方根值为46cm。

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《Proceedings of the Institute of Navigation 2012 international technical meeting》|2012年|978-985|共8页
会议地点 Newport Beach CA(US)
作者
Hans G. Schantz;
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The Q-Track Corporation;

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正文语种 eng
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4. THEORY AND PRACTICE OF NEAR-FIELD ELECTROMAGNETIC RANGING - (PPT) [C] . HANS SCHANTZ International Technical Meeting of The Institute of Navigation . 2012

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5. Electromagnetic models for indoor wave propagation analysis and their application for ultra-wideband near-field radar imaging of building interiors and human movement detection. [D] . Thiel, Michael. 2010

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8. Surface-to-Surface and Subsurface-to-Air Propagation of Electromagnetic Waves. The Derivation of Electric and Magnetic Field Components for the Quasi-Static, Quasi-Near, and Near-Field Ranges [R] . Bannister, P. R. 1967

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Theory and Practice of Near-Field Electromagnetic Ranging

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