Towfish altitude computation using multipath acoustic ranging
Towfish altitude computation using multipath acoustic ranging
- New search for: Trahan, R.E. jun.
- New search for: Yeadon, D.S.
- New search for: Thiele, M.G. jun.
- New search for: Trahan, R.E. jun.
- New search for: Yeadon, D.S.
- New search for: Thiele, M.G. jun.
A technique that uses an acoustic ranging method to estimate towfish altitude, i.e., the height of the towfish above the seafloor, is presented. The ranging algorithm is an implementation of path-length calculation for acoustic signals generated at the towfish and received by a hydrophone located at the towing ship. The time delay between the direct and bottom-reflected signals is measured. By knowing the towfish depth and layback distance, the time delay can be used to compute the towfish altitude.
Document information
Towfish altitude computation using multipath acoustic ranging
Höhenberechnung über Grund des Towfisches durch akustische Mehrwegeingrenzung
IEEE Journal of Oceanic Engineering ; 16 , 2, PT.1 ; 212-216
1991
5 Seiten, 7 Quellen
Article (Journal)
English
DIGITALE SIGNALVERARBEITUNG , HYDROPHON , REFLEKTIERTE WELLE , SIGNALVERARBEITUNG , SCHALLEMPFAENGER , LAGEMESSUNG , MESSDATENVERARBEITUNG , MEERESTECHNIK , HOEHENMESSUNG , ABSTANDSMESSUNG , ECHOLOTUNG , ECHOSIGNAL , UNTERWASSERSCHALL , SCHALLSIGNAL , SONAR , AKUSTISCHE SIGNALVERARBEITUNG , MEERESBODEN
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