Search - frequency domain filter

Search - frequency domain filter - List

[assembly language] Matlab DL : 0: 选择三个不同频段的信号对其进行频谱分析，根据信号的频谱特征设计三个不同的数字滤波器，将三路信号合成一路信号，分析合成信号的时域和频域特点，然后将合成信号分别通过设计好的三个数字滤波器，分离出原来的三路信号，分析得到的三路信号的时域波形和频谱，与原始信号进行比较，说明频分复用的特点。-Choice of three different signal-band spectral analysis carried out, according to the characteristics of the design spectrum signals of three different digital filter, the signal will be three-way all the way signal synthesis, analysis of time-domain signal synthesis and frequency domain characteristics of signals and then synthetic through three digital filter designed to isolate the original three-way signal, the three-way analysis of time-domain signal waveform and spectrum, compared with the original signal on frequency division multiplexing features.
Date : 2025-12-13 Size : 4kb User : 无语
[assembly language] MATLAB DL : 0: 1、读取图像A和B，显示这两幅图像，对图像作傅立叶变换，显示频域振幅图像。作傅立叶逆变换，显示图像，看是否与原图像相同。 2、设计一个简单的巴特沃斯低通滤波器（截止频率自选），对图像A作频域低通滤波，再作反变换，观察两种不同的截止频率下反变换后的图像与原图像的区别。 3、设计一个高斯高通滤波器（截止频率自选），对图像B作高频强调滤波，再作反变换，观察两种不同的截止频率下反变换后的图像与原图像的区别.-1, the read image A and B, show two images, the Fourier transform of the image, display the amplitude of the frequency domain image. Inverse Fourier transform for the display image, to see if the same original image. 2, the design of a simple Butterworth low-pass filter (cutoff frequency selectable), the image A low-pass filter for the frequency domain, and then make the inverse transform, under two different cutoff frequencies observed inverse transform the image and the original image difference. 3, the design of a high-pass Gaussian filter (cutoff frequency optional), the high frequency emphasis filter for the image B, and then make the inverse transform, the difference image and the original image is observed under two different cutoff frequency inverse transformed.
Date : 2025-12-13 Size : 2kb User : weiweizhi