Filter and attenuation的意思|示意

A kind of inverse sampling filter is designed in order to compensate this attenuation and some methods is proposed to save the design resource.

文中设计了补偿此衰减的数字滤波器，并提出一种节省资源的高效实现方法。

The filter selectivity and stopband attenuation can be easily specified or controlled.

所设计滤波器的选择性和阻带衰减可预先给定并易于控制。

The bandpass filter that has spurious suppression characteristics can solve this problem and it has excellent bandpass symmetry and stopband attenuation characteristics at high frequency.

具有杂波抑制特性的带通滤波器不仅可以实现这个功能，同时由于抑制了杂波还可以提高带通滤波器的通带对称性以及高端阻带的衰减特性。

This paper presents a new adaptive multilevel median filter based on direction information measure to solve the contradiction between noise attenuation and image details-preserving (edge-preserving).

针对图像滤噪中滤除噪声和保护细节(边缘)的矛盾，本文提出一种新的基于方向信息测度的自适应多级中值滤波器。

Band stop filter made with this structure has narrow gap and steep attenuation.

利用该结构制作的带阻滤波器，阻带窄、衰减陡峭。

A relation between average alias attenuation and filter order and sampling rate is derived from calculation.

通过计算导出了平均假频衰减与滤波器阶次及采样率的关系式。