time frequency filtering

[taɪm ˈfriːkwənsi ˈfɪltərɪŋ]
  • 释义

    时间频率滤波

数据更新时间:2025-11-14 19:06:13
1、

Reduction of random noise for seismic data by time-frequency peak filtering

用时频峰值滤波方法消减地震勘探资料中随机噪声的初步研究

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2、

Fractional Fourier transform and time-frequency filtering

分数阶Fourier变换与时频滤波

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3、

With the use of filtering method in frequency domain, certain low frequency components were filtered, the time domain waveform was retrieved by IFFT, and the biphase T wave appeared in time domain.

用频域滤波的方法,分别滤去一定低频成分,再IFFT恢复时域波形,时域信号出现了双相T波。

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4、

Although the filtering method in frequency domain can solve the time variant filtering problem based on Fourier transform, the method may appear a false anomaly in conjunct part between windows.

频率域滤波方法虽然可解决时变滤波问题,但这种方法是基于傅里叶变换,在窗口与窗口之间的接合部位会出现假异常。

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5、

And thus the fine time-frequency resolution can be obtained. The RPK time-frequency distribution not only suppresses the cross-terms preferably but also removes the noise of signals due to the adaptive filtering of the kernel function.

自适应抛物线核时频分析方法由于核函数对信号自项的选通作用,不仅较好地抑制了交叉项,同时对噪声起到了很好的抑制效果。

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6、

Low level image processing is the base of navigation. The paper discusses time domain filtering and frequency domain filtering according to the noise disturbance in the surroundings images.

低层视觉图像处理是视觉导航的基础,针对环境图像存在噪声干扰的特点,文章分别从时域和频域上分析了图像滤波的方法。

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