کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
563841 875539 2010 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Subspace intersection method of high-resolution bearing estimation in shallow ocean using acoustic vector sensors
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر پردازش سیگنال
پیش نمایش صفحه اول مقاله
Subspace intersection method of high-resolution bearing estimation in shallow ocean using acoustic vector sensors
چکیده انگلیسی

The subspace intersection method (SIM) provides unbiased bearing estimates of multiple acoustic sources in a range-independent shallow ocean using a one-dimensional search without prior knowledge of source ranges and depths. The original formulation of this method is based on deployment of a horizontal linear array of hydrophones which measure acoustic pressure. In this paper, we extend SIM to an array of acoustic vector sensors which measure pressure as well as all components of particle velocity. Use of vector sensors reduces the minimum number of sensors required by a factor of 4, and also eliminates the constraint that the intersensor spacing should not exceed half wavelength. The additional information provided by the vector sensors leads to performance enhancement in the form of lower estimation error and higher resolution.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Signal Processing - Volume 90, Issue 1, January 2010, Pages 105–118
نویسندگان
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