Time reversal signal processing for communication.

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Description

Time-reversal is a wave focusing technique that makes use of the reciprocity of wireless propagation channels. It works particularly well in a cluttered environment with associated multipath reflection. This technique uses the multipath in the environment to increase focusing ability. Time-reversal can also be used to null signals, either to reduce unintentional interference or to prevent eavesdropping. It does not require controlled geometric placement of the transmit antennas. Unlike existing techniques it can work without line-of-sight. We have explored the performance of time-reversal focusing in a variety of simulated environments. We have also developed new algorithms to simultaneously focus at ... continued below

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50 p.

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Young, Derek P.; Jacklin, Neil; Punnoose, Ratish J. & Counsil, David T. September 1, 2011.

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Description

Time-reversal is a wave focusing technique that makes use of the reciprocity of wireless propagation channels. It works particularly well in a cluttered environment with associated multipath reflection. This technique uses the multipath in the environment to increase focusing ability. Time-reversal can also be used to null signals, either to reduce unintentional interference or to prevent eavesdropping. It does not require controlled geometric placement of the transmit antennas. Unlike existing techniques it can work without line-of-sight. We have explored the performance of time-reversal focusing in a variety of simulated environments. We have also developed new algorithms to simultaneously focus at a location while nulling at an eavesdropper location. We have experimentally verified these techniques in a realistic cluttered environment.

Physical Description

50 p.

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  • Report No.: SAND2011-7050
  • Grant Number: AC04-94AL85000
  • DOI: 10.2172/1030259 | External Link
  • Office of Scientific & Technical Information Report Number: 1030259
  • Archival Resource Key: ark:/67531/metadc831164

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Creation Date

  • September 1, 2011

Added to The UNT Digital Library

  • May 19, 2016, 3:16 p.m.

Description Last Updated

  • Dec. 7, 2016, 11:12 p.m.

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Young, Derek P.; Jacklin, Neil; Punnoose, Ratish J. & Counsil, David T. Time reversal signal processing for communication., report, September 1, 2011; United States. (digital.library.unt.edu/ark:/67531/metadc831164/: accessed June 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.