A Phase Anti-Ambiguity Method for USBL System

Cui E Zheng; Da Jun Sun

doi:10.4028/www.scientific.net/AMM.571-572.1059

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 571-572A Phase Anti-Ambiguity Method for USBL System

A Phase Anti-Ambiguity Method for USBL System

Abstract:

Target localization was generally achieved by range and azimuth measurement for USBL (Ultra-Short Base Line) positioning system, of which the positioning accuracy was restrained by the array aperture. It usually adopted redundant array elements to solve the inconsistence between high precision and phase ambiguity. However, this routine would introduce the additional phase shift calibration problem for the complex and asymmetric array elements, which was not easy to get good results. To solve this problem, an anti-ambiguity method called dual-pulse signal is proposed in this paper to ensure the correct positioning for the improved array formation. Numerical simulations indicate that the proposed method can effectively improve the positioning precision of the USBL positioning system.

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Periodical:

Applied Mechanics and Materials (Volumes 571-572)

Pages:

1059-1063

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.571-572.1059

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Online since:

June 2014

Authors:

Cui E Zheng, Da Jun Sun*

Keywords:

Dual-Pulse, Phase Anti-Ambiguity, USBL

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