A new method is introduced to decompose a signal into a set of IMFs (Intrinsic Mode Function) by virtue of fast band-pass filtering.
利用快速滤波建立了一种对信号进行本征模态函数分解的全新方法。
We analyze detailedly the azimuth preprocess principle and propose the band-pass filtering sub-aperture method, which can simplify the process effectively.
文中详细分析了方位预处理的工作原理，提出了对子孔径进行带通滤波的处理方法，以有效地简化方位预处理工作。
Two methods with which the long disturbance is removed from the digital are introduced: narrow band low - pass filtering canceling method and adaptive high - pass filtering method.
本文主要提出两种消除数字地震信号中长周期随机干扰的方法：窄带低通滤波对消法和自适应高通滤波法。
It introduces the concrete structural design of the light filtering piece as well as the calculated spectrum characteristic of the one-channel two-pass band light filtering piece.
本发明介绍了滤光片具体的结构设计，以及在此设计下所计算出的一通道二通带滤光片的光谱特性。
Two methods with which the long disturbance is removed from the digital care introduced: narrow band low-pass filtering canceling method and adaptive high-pass filtering method.
主要提出两种消除数字地震信号中长周期随机干扰的方法：窄带低通滤波对消法和自适应高通滤波法。通过使用多级抽点技术大大减少滤波法的运算量，可获得良好的滤波特性。
A control circuit part comprises a band-pass circuit, a primary amplifying circuit, a differential detection circuit, a demodulation circuit, a low-pass filtering circuit and the like.
控制电路部分由带通电路、一级放大电路、差动检测电路、解调电路、低通滤波电路等部分组成。
A control circuit part comprises a band-pass circuit, a primary amplifying circuit, a differential detection circuit, a demodulation circuit, a low-pass filtering circuit and the like.
控制电路部分由带通电路、一级放大电路、差动检测电路、解调电路、低通滤波电路等部分组成。
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