The paper presents a new method used for optimizing array directional patterns, which is called notch noise-field method.

本文介绍一种处理传感器阵方向图最佳化问题的新方法，即所谓凹槽噪声场法。

youdao

And it turns out that my left ear’s hearing is noticeably weaker in certain frequencies—it has what ear docs call the “noise notch” that afflicts those exposed to serious sound.

原来我的左耳对某些频率的声音特别不敏感——这就是医生们所说的“噪音空隙”，它们困扰着那些在噪声下工作过的人们。

youdao

Notch filter for external noise suppression.

陷波滤波器外部噪音抑制。

youdao

Even a top-notch product can have a tough time breaking through the noise and the sales cycles.

FORBES: Box.net Shows How Strategic Investors Can Be Key