<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>47</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Ledeczi, Akos</style></author><author><style face="normal" font="default" size="100%">Volgyesi, Peter</style></author><author><style face="normal" font="default" size="100%">Sallai, Janos</style></author><author><style face="normal" font="default" size="100%">Thibodeaux, Ryan</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">A Novel RF Ranging Method</style></title><secondary-title><style face="normal" font="default" size="100%">Sixth Workshop on Intelligent Solutions in Embedded Systems</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">CNS-0721604</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2008</style></year><pub-dates><date><style  face="normal" font="default" size="100%">07/2008</style></date></pub-dates></dates><urls><related-urls><url><style face="normal" font="default" size="100%">https://archive.isis.vanderbilt.edu/sites/default/files/wises08final.pdf</style></url></related-urls></urls><pub-location><style face="normal" font="default" size="100%">Regensburg, Germany</style></pub-location><abstract><style face="normal" font="default" size="100%">Localization and tracking of wireless nodes have been active research areas in robotics, mobile ad-hoc networks, and wireless sensor networks. While several phenomena have been utilized for this purpose, RF signals have many advantages. Signal strength and time-of-flight are the two typical ways of extracting range information. Recently, radio interferometry was proposed to solve this problem using phase and/or Doppler shift measurements across severely resource-constrained devices. The former requires many measurements at multiple frequencies, while the latter needs motion to generate a usable signal. This paper introduces a novel ranging method based on a rotating antenna generating a Doppler shifted RF signal. The frequency change can be measured using the radio interferometric technique even on low-cost, resource constrained devices. This simple idea provides a surprising number of different ways for estimating range and location. The paper outlines these techniques and describes one of them in more detail with experimental and simulation results.</style></abstract></record></records></xml>