2009, English, Article edition: Motion effect modeling in multipath configuration using warping based lag-doppler filtering Josso, Nicolas; Ioana, Cornel; Gervaise, Cedric; ...

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Bookmark: http://trove.nla.gov.au/version/206704
Physical Description
  • text
Published
  • HAL - CCSD
  • 2009
Language
  • English

Edition details

Title
  • Motion effect modeling in multipath configuration using warping based lag-doppler filtering
Author
  • Josso, Nicolas
  • Ioana, Cornel
  • Gervaise, Cedric
  • Stephan, Yann
  • Mars, Jérôme
Published
  • HAL - CCSD
  • 2009
Physical Description
  • text
Subjects
Notes
  • The estimation of the impulse response (IR) of a propagation channel is necessary for a large number of acoustic applications: underwater communication, detection and localization, etc. Basically, it informs us about the distortions of a transmitted signal in one channel. This operation is usually subject to additional distortions due to the motion of the transmitter-channel receiver configuration. This paper points on the effects of the motion while estimating the IR by matching filtering between the transmitted and the received signals and introduces a new motion compensation method. Knowing the transmitted signal, the “apparent” speed of each propagation path can be estimated using wideband ambiguity function [1]. Indeed, some interference appears in the wideband ambiguity plane because of the multipath propagation. A warpingbased lag-Doppler filtering method is proposed allowing us to accurately estimate the IR of the channel.
  • HAL:hal-00386481, version 1
  • HAL:http:/​/​hal.archives-ouvertes.fr/​hal-00386481/​en/​
Language
  • English
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