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direction finding algorithm

Subject: direction finding algorithm
From: Gianni Pavan <>
Date: Mon, 18 Apr 2005 12:35:17 +0200
Hi all,
        I have some multichannel recordings made with 4 hydrophones, 3 of which 
are mounted on a same plane and the fourth higher then the other 3.
I'm in search of an algorithm to calculate the direction (bearing and 
elevation) of an acoustic source given the time delays I measure on among 
the four hydrophones and their 3D coordinates.
Any hint will be much appreciated!

Gianni
--------------------------------------------------------------
Gianni Pavan
Email 
Centro Interdisciplinare di Bioacustica e Ricerche Ambientali
Universita' degli Studi di Pavia
Via Taramelli 24, 27100 PAVIA, ITALIA
Tel        +39-0382-987874
Fax        +39-02-700-32921
Web       http://www.unipv.it/cibra



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"Microphones are not ears,
Loudspeakers are not birds,
A listening room is not nature."
Klas Strandberg
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