|
TYPICAL
INFRASOUND SOURCES AND APPLICATIONS

 
  
Volcanic
Activity: Volcanoes emit powerful pulses
of infrasonic energy near the moment of
eruption, the acuired data, processed in
real-time, give informations about the overpressure
and origin site of volcanic activity
Meteor
Detector: Meteors generate infrasound
weaves during their entry in the Earth's
atmosphere
Avalanche
Detection: Before an avalanche happens
the is an infrasound emission, most likely
this comes from deep down movements in the
snow
Nuclear
Explosion: The nuclear tests, both under
the water and under te ground, generate
intense infrasonic weaves, it's possible
to reveal these explosions
Aircrafts
Flying and Missiles Launch: All these
events generate infrasound weaves that can
be revealed at long distances, giving useful
information about them
Hearthquakes,
Tornadoes and Fires: They are an intense
source of infrasonic waves that cover long
distances
TYPICAL
INFRASONIC ARRAY CONFIGURATION
Typically
an infrasounds network has a "star"
configuration, organized in several infrasounds
sensor stations, working like "antennas"
to provide in real-time the propagation
azimuth of the sonic beam. According to
the geometry of the array it's possible
to resolve the infrasound source position
by grid searching algorithm calculating
in real-time the cross-correlation between
the single stations.

|