High resolution tracking of mobile agents by electromagnetic time­-reversal techniques

Authors

  • Christian M. Alis ⋅ PH National Institute of Physics, University of the Philippines Diliman
  • Carlo Mar Blanca ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

Time reversal (TR) technique involves recording the signal received from transceivers and playing it backwards for it to refocus back to the source. In this paper, we demonstrate by numerical simulation, the feasibility of tracking a mobile agent indoors using time­reversal of electromagnetic waves. We put a beacon at the center of a 100­-by-­100 cell room and was able to locate it with an uncertainty of only 2­−5 cells. The method is robust and can still efficiently localize the source even through room walls. Since the cells can be of arbitrary size, the accuracy can be in the order of centimeters or less, easily breaking the limits of GPS.

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Issue

Article ID

SPP-2006-3A-02

Section

Instrumentation and Optics

Published

2006-10-25

How to Cite

[1]
CM Alis and CM Blanca, High resolution tracking of mobile agents by electromagnetic time­-reversal techniques, Proceedings of the Samahang Pisika ng Pilipinas 24, SPP-2006-3A-02 (2006). URL: https://proceedings.spp-online.org/article/view/SPP-2006-3A-02.