公开(公告)号：US08699637B2

公开(公告)日：2014-04-15

申请号：US13204042

申请日：2011-08-05

申请人： Bowon Lee ,  Ronald W Schafer ,  Ton Kalker

发明人： Bowon Lee ,  Ronald W Schafer ,  Ton Kalker

IPC分类号： H03D1/00

CPC分类号： H04R3/005 ,  H04R2430/03 ,  H04R2430/20

摘要： A method for time delay estimation performed by a physical computing system includes passing a first input signal obtained by a first sensor through a filter bank to form a first set of sub-band output signals, passing a second input signal obtained by a second sensor through the filter bank to form a second set of sub-band output signals, the second sensor placed a distance from the first sensor, computing cross-correlation data between the first set of sub-band output signals and the second set of sub-band output signals, and applying a time delay determination function to the cross-correlation to determine a time delay estimation.

摘要翻译： 由物理计算系统执行的用于时间延迟估计的方法包括将由第一传感器获得的第一输​​入信号通过滤波器组以形成第一组子带输出信号，将由第二传感器获得的第二输入信号通过 所述滤波器组形成第二组子带输出信号，所述第二传感器与所述第一传感器放置一距离，计算所述第一组子带输出信号与所述第二组子带输出之间的互相关数据 信号，并将时间延迟确定功能应用于互相关以确定时间延迟估计。