|Title||Ray backpropagation-based ship localization|
|Publication Type||Journal Article|
|Year of Publication||2018|
|Authors||Cho S.I, Byun G., Byun S.H, Kim J.S|
|Type of Article||Article|
|Keywords||acoustics; array invariant; blind deconvolution; Channel impulse; range estimation; Ray-backpropagation; Ray-based blind deconvolution; response; shallow-water; source localization|
This paper presents an algorithm for passive localization of a ship by applying the ray back-propagation technique to the ship radiation noise data. The previous method [S. H. Abadi, D. Rouseff and D. R. Dowling, J. Acoust. Soc. Am. 131, 2599-2610 (2012)] estimates the position of a sound source in the near-field environment with no array tilt by using the RBD (Ray-based Blind Deconvolution) and ray back-propagation techniques. However, when there exists an array tilt, the above method leads to a large position estimation error. In order to overcome the problem, this study proposes an algorithm that estimates the position of a sound source by correcting the array tilt using the RBD and ray back-propagation techniques. The proposed algorithm was verified by using the ship noise of SAVEX15 (Shallow-water Acoustic Variability EXperiment in 2015) experimental data.