公开(公告)号：US20160192068A1

公开(公告)日：2016-06-30

申请号：US14588288

申请日：2014-12-31

Applicant: STMICROELECTRONICS ASIA PACIFIC PTE LTD

Inventor： Samuel Samsudin Ng ,  Sapna George ,  Karthik Muralidhar

IPC: H04R1/40

CPC classification number: H04R1/406 ,  H04R3/005 ,  H04R2201/40 ,  H04R2201/401 ,  H04R2201/403 ,  H04R2430/23 ,  H04R2430/25 ,  H04R2499/11 ,  H04R2499/13

Abstract: A method of estimating a steering vector of a sensor array of M sensors according to one embodiment of the present disclosure includes estimating a steering vector of a noise source located at an angle 0 degrees from a look direction of the array using a least squares estimate of the gains of the sensors in the array, defining a steering vector of a desired sound source in the look direction of the array, and estimating the steering vector by performing element-by-element multiplication of the estimated noise vector and the complex conjugate of steering vector of the desired sound source. The sensors may be microphones.

Abstract translation: 根据本公开的一个实施例，估计M个传感器的传感器阵列的导向矢量的方法包括使用最小二乘估计来估计与阵列的外观方向成0度角的噪声源的导向矢量 阵列中的传感器的增益，在阵列的外观方向上定义所需声源的导向矢量，以及通过执行所估计的噪声向量和转向的复共轭的逐个元素相乘来估计导向矢量 所需声源的矢量。 传感器可以是麦克风。

公开(公告)号：US09525934B2

公开(公告)日：2016-12-20

申请号：US14588288

申请日：2014-12-31

Applicant: STMICROELECTRONICS ASIA PACIFIC PTE LTD

Inventor： Samuel Samsudin Ng ,  Sapna George ,  Karthik Muralidhar

IPC: H04R1/40

CPC classification number: H04R1/406 ,  H04R3/005 ,  H04R2201/40 ,  H04R2201/401 ,  H04R2201/403 ,  H04R2430/23 ,  H04R2430/25 ,  H04R2499/11 ,  H04R2499/13

Abstract: A method of estimating a steering vector of a sensor array of M sensors according to one embodiment of the present disclosure includes estimating a steering vector of a noise source located at an angle θ degrees from a look direction of the array using a least squares estimate of the gains of the sensors in the array, defining a steering vector of a desired sound source in the look direction of the array, and estimating the steering vector by performing element-by-element multiplication of the estimated noise vector and the complex conjugate of steering vector of the desired sound source. The sensors may be microphones.

Abstract translation: 根据本公开的一个实施例，估计M个传感器的传感器阵列的导向矢量的方法包括使用最小二乘估计估计与阵列的外观方向成角度θ度的噪声源的导向矢量， 阵列中的传感器的增益，在阵列的外观方向上定义所需声源的导向矢量，以及通过执行所估计的噪声向量和转向的复共轭的逐个元素相乘来估计导向矢量 所需声源的矢量。 传感器可以是麦克风。