کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
564521 875613 2009 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Efficient underwater two-dimensional coherent source localization with linear vector-hydrophone array
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر پردازش سیگنال
پیش نمایش صفحه اول مقاله
Efficient underwater two-dimensional coherent source localization with linear vector-hydrophone array
چکیده انگلیسی

This paper proposes a new computationally simple 2D direction finding algorithm for underwater acoustic coherent signals using a uniformly linear array of vector hydrophones. We decorrelate the source coherency by subarray averaging, and apply the propagator method to estimate automatically paired direction cosines embedded in the acoustical particle-velocity components of the vector hydrophone. Therefore, the presented algorithm requires neither the eigen-decomposition into signal/noise subspaces nor the 2D iteratively searching. In addition, because the vector-hydrophone array manifold contains no sensor location information, this new algorithm can offer high azimuth–elevation estimation accuracy by setting vector hydrophones to space much farther apart than a half-wavelength. The presented algorithm can be regarded as an improvement of SUMWE algorithm [19] via replacing the pressure hydrophones there by vector hydrophones. Monte-Carlo simulations are presented to verify the efficacy of the proposed algorithm.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Signal Processing - Volume 89, Issue 9, September 2009, Pages 1715–1722
نویسندگان
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