A wave field estimation method exploiting prior information on source direction is proposed. First, we formulate a wave field estimation problem as regularized least squares, where the norm of the wave field is used for a regularization term. The norm of the wave field is defined on the basis of the weighting function that reflects the prior information on the source direction. We derive the closed-form solution using theories on Hilbert spaces. Results of numerical experiments indicated that high estimation accuracy can be achieved by using the proposed method in comparison with other current methods that do not use any prior information.

中文翻译：

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利用源方向先验信息的方向加权波场估计


提出了一种利用源方向先验信息的波场估计方法。首先，我们将波场估计问题表述为正则化最小二乘法，其中波场的范数用作正则化项。波场的范数是根据反映源方向先验信息的加权函数定义的。我们使用希尔伯特空间理论推导出封闭式解。数值实验结果表明，与当前其他不使用任何先验信息的方法相比，使用该方法可以实现较高的估计精度。