Record Details

Optimal estimation of ship's attitudes for beampattern corrections in a coaxial circular array

DRS at CSIR-National Institute of Oceanography

View Archive Info
 
 
Field Value
 
Title Optimal estimation of ship's attitudes for beampattern corrections in a coaxial circular array
 
Creator Chakraborty, B.
Dev, K.K.
 
Description A study is conducted to estimate the accurate attitude of a ship's motion and the estimation is used to arrive at the corrections required for a farfield pattern of a coaxial circular array. The relevant analytical expression is developed for the computation of moving average filter weights to estimate the ship's attitude for beamsteering at different sea conditions. Farfield patterns are presented for different steered directions for the coaxial circular array of the additive type, and the multiplicative array technique is also used for beamsteering for higher steering angles to observe its control on the sidelobes as well as for the main beamwidths. In order to introduce an adaptive filter to estimate the accurate attitude for stable sonar platform, an adaptive parameter is examined for bathymetric applications where nonstationary ship movement prevails
 
Date 2009-05-05T05:03:39Z
2009-05-05T05:03:39Z
1994
 
Type Journal Article
 
Identifier Marine Geodesy, Vol.17; 223-236p.
http://drs.nio.org/drs/handle/2264/2674
 
Language en
 
Rights Copyright [1994]. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository.
 
Publisher Taylor and Francis