Record Details

<span style="font-size:15.0pt;line-height:115%; font-family:"Times New Roman","serif";mso-fareast-font-family:Calibri; mso-ansi-language:EN-IN;mso-fareast-language:EN-US;mso-bidi-language:AR-SA">Methodologies for broadband reverberation data processing and analysis</span>

NOPR - NISCAIR Online Periodicals Repository

View Archive Info
 
 
Field Value
 
Title Methodologies for broadband reverberation data processing and analysis
 
Creator Nair, Baiju M.
 
Subject Multirate filters
Ray modelling
 
Description 245-251
Data
processing methodologies used to analyse broadband reverberation signals from
an explosive sound source are presented in this paper. Reverberation data was
collected at deep (2070 m) and shallow water (57 m) sites in the Bay of Bengal.
In these experiments, TNT charges (0.450 kg) were used as sound sources. The received
signals were recorded using two hydrophones deployed from the ship. The sonic surface
duct thickness at the shallow water site is around 32 m with a limiting ray angle
of 3.16o and a lower cut off frequency at 416 Hz. The deep water
location had deeper duct (63 m) with a limiting ray angle of about 4.47o
and a lower cut off frequency of 177 Hz. One third octave band analysis using
multirate filters and time frequency analysis were used to study the
reverberation characteristics. Comparison of deep water and shallow water reverberation
characteristic across a broad band of frequencies are presented along with
analysis based on ray modelling.
 
Date 2016-07-04T09:16:17Z
2016-07-04T09:16:17Z
2015-02
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://hdl.handle.net/123456789/34644
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.44(02) [February 2015]