scholarly journals A passive source ranging method using the waveguide-invariant-warping operator

2015 ◽  
Vol 64 (7) ◽  
pp. 074301
Author(s):  
Qi Yu-Bo ◽  
Zhou Shi-Hong ◽  
Zhang Ren-He ◽  
Ren Yun
Keyword(s):  
Waveguide Invariant ◽  
Warping Operator

A Waveguide-Invariant-Based Warping Operator and Its Application to Passive Source Range Estimation

2015 ◽  
Vol 23 (01) ◽  
pp. 1550003 ◽  
Author(s):  
Yu Bo Qi ◽  
Shi Hong Zhou ◽  
Ren He Zhang ◽  
Yun Ren
Keyword(s):  
Correlation Function ◽  
Cross Correlation ◽  
Low Frequency ◽  
Cross Correlation Function ◽  
Range Estimation ◽  
Waveguide Invariant ◽  
Correlation Component ◽  
The Cross ◽  
The Relationship ◽  
Warping Operator

A formula for the instantaneous phase of the cross-correlation function of two different modes using the relationship between the horizontal wavenumber difference and frequency described by the waveguide invariant is deduced in this paper. Based on the formula, a waveguide-invariant-based warping operator suitable for both reflected and refracted modes in shallow water at low frequency is presented, providing an effective tool to filter the cross-correlation function of modes from the signal autocorrelation function. Using the phase of the filtered cross-correlation component in the frequency domain, a passive source ranging method on a single hydrophone is proposed. Simulated and experimental data using impulsive signals verify the validity of the derived warping operator and source ranging method.

Experimental study on waveguide invariant passive ranging based on buoy

2021 ◽  
Author(s):  
Zhizhuan Wang ◽  
Mingwei Zhang ◽  
Yang Zhang ◽  
Guijuan Li ◽  
Xuegang Zhang
Keyword(s):  
Experimental Study ◽  
Waveguide Invariant ◽  
Passive Ranging

Focusing Green's function using the waveguide invariant theory

2021 ◽  
Vol 150 (4) ◽  
pp. A281-A281
Author(s):  
Daehwan Kim ◽  
Donghyeon Kim ◽  
J. S. Kim
Keyword(s):  
Green’S Function ◽  
Green's Function ◽  
Invariant Theory ◽  
Waveguide Invariant

scholarly journals Measured depth-dependence of waveguide invariant in shallow water with a summer profile

2016 ◽  
Vol 139 (6) ◽  
pp. EL184-EL189 ◽  
Author(s):  
Altan Turgut ◽  
Laurie T. Fialkowski ◽  
Jeffrey A. Schindall
Keyword(s):  
Shallow Water ◽  
Depth Dependence ◽  
Waveguide Invariant

On the invariance of the waveguide invariant

2021 ◽  
Vol 150 (4) ◽  
pp. A280-A280
Author(s):  
Daniel Rouseff ◽  
Lisa Zurk
Keyword(s):  
Waveguide Invariant
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