The design of an element of a freely drifting infrasonic sensor array is described. The intent of this measurement system is to gather wide aperture data sets which will be used both to characterize ambient noise in the region 1-10 Hz and to assess the gains possible from beamforming utilizing a collection of VLF (very low frequency) sensors. Coherent processing (beamforming) of the infrasonic sensor data is made possible by relative position measurements derived from mutual acoustic interrogation of the elements at a higher frequency.
A freely drifting infrasonic sensor system
Ein freischwimmendes Infraschall-Sensorensystem
1986
6 Seiten, 6 Bilder, 14 Quellen
Aufsatz (Konferenz)
Englisch
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