At the Umeå Division the propagation of the infra sound in
the atmosphere is studied. Due to special problems with detection
of infra sound from distant sources, like a low signal-to-noise
ratio and a strong influence of the atmospheric structures on the
propagation of infra sound, a major part of the work at IRF-Um
was concentrated on development of new methods for signal
processing and data analysis.
Recent work includes:
Propagation of infrasonic waves
Studies of the fine structure of the infrasonic signals
generated during supersonic flights of Concorde.
Studies of the long term variations (since 1978) of the
wind system above the Northern Atlantic using the
infrasonic signals generated by Concorde.
Infrasonic detection of meteor impacts.
Infrasonic detection of high altitude discharges - sprites.
Space Science Data Analysis Tools
Applications of neural networks for intelligent
processing of large quantities of data; automatic
categorization and construction of statistical models.
Applications of the causal modeling to different kinds of
Applications of wavlets to signal and image processing.
Publications at IRF-Um
Staff at IRF-Um
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This page was updated
Thursday, 29-Oct-2009 15:46:09 CET.