Pulse-level interference and meteor processing of Arecibo ISR data

C. H. Wen, S. J. Briczinski, D. J. Livneh, J. F. Doherty, J. D. Mathews

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

We introduce a simple but effective order statistics filter for the pulse-level interference and meteor processing of Arecibo ionosphere observation data. Using this filter and the techniques introduced by Wen et al. [2005. Adaptive filtering for the separation of incoherent scatter and meteor signals for Arecibo Observation Data. Journal of Atmospheric and Solar-Terrestrial Physics 67, 1190-1195] we effectively remove/separate the unwanted signals, such as impulsive interference and meteor returns, encountered during incoherent scatter radar (ISR) observations of the ionosphere. We further analyze the separated signals to obtain uniquely "cleaned" incoherent scatter power data and scientifically valuable meteor parameters. We present the processed incoherent scatter results from 22/23 March 2004 observations and the altitude and the speed distributions of the separated meteor signals. The nighttime photochemical E-region is clearly revealed for the first time as a result of meteor and interference removal. Additionally, these results reveal the first major bias in large aperture radar meteor headecho results-the meteor speed distribution is flattened by the absence of at least 50% of the events with duration less than 10 ms revealed by meteor-specific observations. Meteor data derived from standard incoherent scatter data always displays this bias.

Original languageEnglish (US)
Pages (from-to)973-980
Number of pages8
JournalJournal of Atmospheric and Solar-Terrestrial Physics
Volume69
Issue number9
DOIs
StatePublished - Jul 1 2007

Fingerprint

incoherent scatter radar
radar data
meteoroids
meteor
radar
interference
pulses
ionospheres
ionosphere
filter
filters
radar tracking
E region
physics
apertures
statistics

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Atmospheric Science
  • Space and Planetary Science

Cite this

Wen, C. H. ; Briczinski, S. J. ; Livneh, D. J. ; Doherty, J. F. ; Mathews, J. D. / Pulse-level interference and meteor processing of Arecibo ISR data. In: Journal of Atmospheric and Solar-Terrestrial Physics. 2007 ; Vol. 69, No. 9. pp. 973-980.
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Pulse-level interference and meteor processing of Arecibo ISR data. / Wen, C. H.; Briczinski, S. J.; Livneh, D. J.; Doherty, J. F.; Mathews, J. D.

In: Journal of Atmospheric and Solar-Terrestrial Physics, Vol. 69, No. 9, 01.07.2007, p. 973-980.

Research output: Contribution to journalArticle

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