The history of towed transducer applications at the Institute of Marine Research, Bergen, is reviewed. Advantages and disadvantages of several designs are summarized. To improve performance significantly, a new system design is proposed. This entails constant immersion of the towed body, either hydraulically locked in a recess in the hull or in tow. The merits of being able to use the same transducer in both configurations are emphasized
The design of a new echo integrator system is outlined. The B.E.I. is based on preprocessed data fr...
Thesis (S.M. in Naval Architecture and Marine Engineering ; and, S.M. in Ocean Systems Management)--...
The first at-sea trial of a new, split-beam echo sounder, the SIMRAD ES380 system, is described fol...
The history of towed transducer applications at the Institute of Marine Research, Bergen, is review...
A research program was initiated in Norway in 1988 for measuring the abundance of fish resources at...
A 38 kHz split beam survey transducer has been mounted on the tip of a 4 m vertical protrusile stab...
The object of research is the design technology of towed underwater systems for shallow waters. The ...
The work described in this thesis tested the feasibility of using a towed array of hydrophones to: 1...
An aluminum towed body was designed for use in hydroacoustic surveying of fish stocks in shallow (2–...
This thesis describes an investigation into the feasibility of using a purely audible display in con...
The underwater towed system described here consists of tow cables, a towed body, an acoustic module ...
Catching methods and ways to improve them have been engaging the attention of fishermen from time im...
This thesis relates to the sonar system research undertaken for a Naval Requirement for proposals to...
The 30th American Towing Tank Conference, West Bethesda, Maryland, October 2017The Naval Postgraduat...
Most applications of echo integration involve use of a fixed single-beam transducer that is rather ...
The design of a new echo integrator system is outlined. The B.E.I. is based on preprocessed data fr...
Thesis (S.M. in Naval Architecture and Marine Engineering ; and, S.M. in Ocean Systems Management)--...
The first at-sea trial of a new, split-beam echo sounder, the SIMRAD ES380 system, is described fol...
The history of towed transducer applications at the Institute of Marine Research, Bergen, is review...
A research program was initiated in Norway in 1988 for measuring the abundance of fish resources at...
A 38 kHz split beam survey transducer has been mounted on the tip of a 4 m vertical protrusile stab...
The object of research is the design technology of towed underwater systems for shallow waters. The ...
The work described in this thesis tested the feasibility of using a towed array of hydrophones to: 1...
An aluminum towed body was designed for use in hydroacoustic surveying of fish stocks in shallow (2–...
This thesis describes an investigation into the feasibility of using a purely audible display in con...
The underwater towed system described here consists of tow cables, a towed body, an acoustic module ...
Catching methods and ways to improve them have been engaging the attention of fishermen from time im...
This thesis relates to the sonar system research undertaken for a Naval Requirement for proposals to...
The 30th American Towing Tank Conference, West Bethesda, Maryland, October 2017The Naval Postgraduat...
Most applications of echo integration involve use of a fixed single-beam transducer that is rather ...
The design of a new echo integrator system is outlined. The B.E.I. is based on preprocessed data fr...
Thesis (S.M. in Naval Architecture and Marine Engineering ; and, S.M. in Ocean Systems Management)--...
The first at-sea trial of a new, split-beam echo sounder, the SIMRAD ES380 system, is described fol...