Biquaternion Model of Vector Hydrophone Array and DOA Estimation Algorithm

Abstract:

In the traditional vector data expressions, the outputs of a single 3D vector hydrophone are reorganized into a complex vector, which cannot retain the orthogonality of the velocity elements. In this paper, biquaternion formalism is used to model the vector hydrophone’s output and a novel MUSIC-like algorithm is proposed to estimate the DOA (Direction-Of-Arrival) of the sources. The three velocity channels outputs are placed in the imaginary parts of the biquaternion numbers, which retains the orthogonality of the particle velocities and is robust to correlated/coherent noises. What’s more, the biquaternion data model has a compact way of handing multi-component data, which results a much less memory requirements compared with the traditional approach.

• Periodical: Applied Mechanics and Materials (Volumes 239-240)
• Pages: 92-95
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.239-240.92
• Online since: December 2012
• Authors: Guang Jin He, Jin Fang Cheng, Wei Zhang
• Keywords: Biquaternion, Correlated Noises, Direction-of-Arrival (DOA), Music, Vector Hydrophone

References

[1] Youhua Wang, Jianqiu Zhang, Bo Hu, et al.: IEEE International Instrumentation and Measurement Technology Conference, Vicoria, Vancouver Island, Canada, Vol. 1(2008), p.12

[2] M Hawkes and A Nehorai: IEEE Journal of Oceanic Engineering, Vol. 26(2001), p.337

[3] A Abdi and H Guo: OCEANS (2008), p.1

[4] Jiwu Zou and Dajun Sun.: Journal of Harbin Engineering University, Vol. 32(2011), p.16

[5] S. Miron and N L.Bihan: IEEE Workshop on Statistical Signal Processing, Bordeaux, Vol. 1(2005), p.918