Modified root-music algorithm and its application to real data, passive bearing estimation of shallow water acoustic targets

• Autorzy: Henclik S.
• Języki publikacji: EN

Abstrakty

EN

The main problem addressed in the paper is an idea of modification and generalization of Root-MUSIC method. The algorithm is commonly used for uniform linear arrays. A concept how to generalize this method for non-uniform arrays is presented. An additional parametric test is also proposed for the selection of signal roots. Selected results of shallow water acoustic targets location (in bearing), with passive, linear array of hydrophones is also presented. The data used were acquired with an array situated in littoral waters, made and tested at Marine Technology Centre. A short background of array processing methods, especially subspace-based algorithms is included as well. Some important practical problems are also shortly discussed.

• Wydawca: Polskie Towarzystwo Akustyczne. Oddział Gdański
• Czasopismo: Hydroacoustics
• Rocznik: 2001
• Tom: Vol. 4
• Strony: 87--90
• Opis fizyczny: Bibliogr. 6 poz., rys.

Twórcy

autor

Henclik S.

• R&D Marine Technology Centre, ul. Dickmana 62, 81-109 Gdynia, Poland

Bibliografia

• 1. S. Henclik: .Parametric methods for underwater acoustic signals DOA estimation in passive systems" (in polish), Proceedings of 17th Symp. on Hydroacoustics, Jurata - 2000.
• 2. S. Henclik: "Root-Music method with parametric test for linear arrays" (in polish), Marine Technology Centre internal issue, RF-200 I1T-008.
• 3. H. Krim, M. Viberg, "Two deeades of array signal processing research", IEEE Signal Processing Magazine, 67-94, 07'96.
• 4. B. D. Rao, K.V.S. Hari: "Performance analysis of Root-Music". IEEE ASSP-37, Dee.'89, 1939-1949.
• 5. P. Stoica, A. Nehorai: "MUSIC, maximum likelihood and Cramer-Rao bound", Trans. on ASSP-37, 720-741, 05'89.
• 6. M. Viberg, B.Ottersten, T. Kailath: .Detection and estimation in sensor arrays using weighted subspace fitting", Trans. on ASSP-39, 2436-2449, 11'91.