کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
562564 1451967 2014 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Underdetermined direction of arrival estimation using acoustic vector sensor
ترجمه فارسی عنوان
جهت تعیین پیش بینی ورود با استفاده از حسگر بردار آکوستیک
کلمات کلیدی
آرایه میکروفون، سنسورهای برداری جهت برآورد رسیدن، ماتریس کوواریانس
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر پردازش سیگنال
چکیده انگلیسی

This paper presents a new approach for the estimation of two-dimensional (2D) direction-of-arrival (DOA) of more sources than sensors using an Acoustic Vector Sensor (AVS). The approach is developed based on Khatri–Rao (KR) product by exploiting the subspace characteristics of the time variant covariance matrices of the uncorrelated quasi-stationary source signals. An AVS is used to measure both the acoustic pressure and pressure gradients in a complete sound field and the DOAs are determined in both horizontal and vertical planes. The identifiability of the presented KR-AVS approach is studied in both theoretic analysis and computer simulations. Computer simulations demonstrated that 2D DOAs of six speech sources are successfully estimated. Superior root mean square error (RMSE) is obtained using the new KR-AVS array approach compared to the other geometries of the non-uniform linear array, the 2D L-shape array, and the 2D triangular array.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Signal Processing - Volume 100, July 2014, Pages 160–168
نویسندگان
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