Passive localization for mixed-field moving sources

• Autorzy: Gao C. , Liu H.
• 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

• Wydawca: -
• Czasopismo: Polish Maritime Research
• Rocznik: 2018
• Tom: 25
• Numer: Special Issue S2
• Opis fizyczny: p.69-74,fig.,ref.

Twórcy

autor

Gao C.

• Communication Engineering Department, Xiamen University, Xiamen, Fujian 361005, China

autor

Liu H.

• Communication Engineering Department, Xiamen University, Xiamen, Fujian 361005, China

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Identyfikatory

DOI

10.2478/pomr-2018-0076