Passive localization for mixed-field moving sources

• Autorzy: Gao C. , Liu H.

Identyfikatory

DOI

10.2478/pomr-2018-0076

• Języki publikacji: EN

Abstrakty

EN

Due to the mobility of underwater equipment, high-precision underwater positioning technology will face two technical challenges: dealing with mixed-field signals composed of near-field signals and far-field signals; adapting to variable component of mixed-field signals considering the mobility of equipment. Under this condition, an effective method based on MUSIC is addressed in this paper. After distinguishing far-field signal subspace from mixed-field signal subspace, estimations of DOAs and powers of far-field sources are carried out. Then the corresponding far-field and noise signal components can be eliminated from the signal subspace. After that, based on path-following algorithm, modified 2D-MUSIC is performed for DOA and range estimations of near-field sources. The performance of the proposed method is verified and compared with the other methods through computer simulations. Reasonable classification of source types and accurate localization estimation can be achieved by using the proposed method.

Słowa kluczowe

EN

underwater positioning; passive localization; mixed-field sources; MUSIC algorithm

• Wydawca: Gdańsk University of Technology, Faculty of Ocean Engineering & Ship Technology
• Czasopismo: Polish Maritime Research
• Rocznik: 2018
• Tom: S 2
• Strony: 69--74
• Opis fizyczny: Bibliogr. 14 poz., rys.

Twórcy

autor

Gao C.

• Communication Engineering Department, Xiamen University, Xiamen, Fujian, China

autor

Liu H.

• Communication Engineering Department, Xiamen University, Xiamen, Fujian, China

Bibliografia

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).