Partial differential equation-based localization of a monopole source from a circular array.

Partial differential equation-based localization of a monopole source from a circular array.
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基于偏微分方程的圆形阵列单极源定位。

DOI:
10.1121/1.4820896
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发表时间:
2013
期刊:
The Journal of the Acoustical Society of America
影响因子:
--
通讯作者:
T. Levy
T. Levy
中科院分区:
--
文献类型:
--
作者:
S. Ando;T. Nara;T. Levy

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波源定位一直是传感器阵列在理论和应用上最活跃的研究课题。本文提出了一种在时域内精确反演圆形基阵中任意点源方向和距离的方法。该方法是基于一种数学技术,加权积分法,信号/源参数估计。它开始于源约束偏微分方程的精确形式,该方程描述了宽带波从单个源的单向传播,并导致精确的代数方程,包括圆形傅立叶系数(相位模式测量)作为其系数。从他们,几乎封闭的形式,单次和多次拍摄的算法,是适合于使用带通/差分滤波器组。数值计算和几个实验结果使用16元圆形麦克风阵列,以验证该方法的有效性。
Wave source localization from a sensor array has long been the most active research topics in both theory and application. In this paper, an explicit and time-domain inversion method for the direction and distance of a monopole source from a circular array is proposed. The approach is based on a mathematical technique, the weighted integral method, for signal/source parameter estimation. It begins with an exact form of the source-constraint partial differential equation that describes the unilateral propagation of wide-band waves from a single source, and leads to exact algebraic equations that include circular Fourier coefficients (phase mode measurements) as their coefficients. From them, nearly closed-form, single-shot and multishot algorithms are obtained that is suitable for use with band-pass/differential filter banks. Numerical evaluation and several experimental results obtained using a 16-element circular microphone array are presented to verify the validity of the proposed method.
DOI: --
发表时间: 2010
期刊: Inverse Problems 26
影响因子: --
作者:
Takaaki Nara;Shigeru Ando
通讯作者: Shigeru Ando
DOI: 10.1109/29.32276
发表时间: 1989-07-01
期刊: IEEE TRANSACTIONS ON ACOUSTICS SPEECH AND SIGNAL PROCESSING
影响因子: --
作者:
ROY, R;KAILATH, T
通讯作者: KAILATH, T
DOI: --
发表时间: 2009
期刊: IEEE Trans.Signal Processing 57
影响因子: --
作者:
Shigeru Ando;Takaaki Nara
通讯作者: Takaaki Nara