搜索资源列表
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1.找点一段心电信号,画出信号时域波形和频谱图;
2. 利用MATLAB中的随机函数产生噪声加入到心电信号中,使心电信号被污染,读出污染后的号并画出对应信号的时域波形和频谱图;
3.用双线性变换法设计一个Butterworth带通滤波器,输出所设计的滤波器的阶次,分子、分母多项式的系数,画出滤波器的频率响应(幅频响应和相频响应)曲线;(也可以根据自己需要设置滤波器性能指标)
带通通滤波器设计性能指标:fs1=10Hz, fp1=20Hz, fp1=1000Hz, fs2=120
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bmp图像处理
基本时域滤波,傅氏变换,频域滤波,图像生长
一维傅氏变换
图像边界提取
图形学滤波
-bmp image processing of basic time-domain filtering, Fourier transform, frequency domain filtering, image the growth of one-dimensional Fourier transform image edge extraction filtering Gr
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本实验要求开发一个2-D FFT程序包,使其可以应用于后续的几个实验。这个程序需要完成的功能是用因子(-1)^(x+y)乘以输入图像以实现滤波的中心变换,并还要求用一个实矩阵乘以一个复数矩阵通过调用两个图像的乘法程序来实现对应元素的相乘,同时计算反傅立叶变换,得到的结果乘以(-1)^(x+y)并取其实部最后计算频谱。实验中用到傅立叶变换的基本公式,通过实验我们可以更加深刻的理解频域滤波的基础。-The experiment calls for the development of a 2-D F
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是一种很重要的滤波方式,时域频域联合起来-Is a very important way of filtering, frequency domain time domain together
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功能十分强大的数字图像处理程序,具有基本的图像输入和变换,图形的即时绘制,彩色图像处理,图像旋转平移缩放,分离滤除RGB三原色,边缘检测与提取,频域变换(FFT,DCT),中值滤波等功能-Function is very powerful digital image processing procedures, have a basic input and transform images, graphics, real-time rendering, color image processin
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时频峰值滤波的理论实验,对地震噪声的滤波。-The theory of time-frequency peak filtering experiments, the seismic noise filtering.
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基础时频峰值滤波程序,为初学者提供参考。-Based time-frequency peak filtering procedures, and provide a reference for beginners.
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对图像cat的频域滤波 将图像转换为频域后滤波在转回时域图形 完成效果较好-Cat image filtering in frequency domain into the frequency domain image filtering in the back after the completion of the time domain is better graphics
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音频信号的处理:导入一个时长若干秒的音频信号,得到该音频文件的频率fs和幅度A,显示信号的时域图和频谱图,加入频率为fs/3,幅度为2A的噪声,分析、显示并播放有噪声时时域图和频谱图,以及滤除噪声后的信号的时域图和频谱图。-Audio signal processing: Import a duration of several seconds of the audio signal to obtain a frequency fs, and the amplitude A of the aud
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超声大数据数据的处理,进行滤波、采样、时域变换、频域变换,并对数据波形进行显示,最后显示超声图像-Ultrasonic data data processing, filtering, sampling, time domain transform, frequency domain transformation, and the data waveform display, finally according to ultrasound images
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把时域图像转换成频域的图像,并运用各种滤波来恢复原图像-The image is converted into the time domain frequency domain image, and use a variety of filtering to restore the original image
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s变换;广义s变换;高斯邻域;时频分析;滤波-s transformation generalized s transformation Gaussian neighborhood time-frequency analysis Filtering
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对时域信号进行滤波以及进行频域分析,可应用在机械震动信号领域-
Filtering and frequency domain analysis of time-domain signal can be used in the field of mechanical vibration signal
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频域滤波,然后对滤波后的信号进行傅里叶逆变换,得到时域信号并画图!-Frequency domain filtering, and then the signal after the inverse Fourier transform, the time-domain signal and draw!
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频域滤波,然后对滤波后的信号进行傅里叶逆变换,得到时域信号并画图!-Frequency domain filtering, and then the signal after the inverse Fourier transform, the time-domain signal and draw!
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频域滤波,然后对滤波后的信号进行傅里叶逆变换,得到时域信号并画图!-Frequency domain filtering, and then the signal after the inverse Fourier transform, the time-domain signal and draw!
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频域滤波,然后对滤波后的信号进行傅里叶逆变换,得到时域信号并画图!-Frequency domain filtering, and then the signal after the inverse Fourier transform, the time-domain signal and draw!
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频域滤波,然后对滤波后的信号进行傅里叶逆变换,得到时域信号并画图!-Frequency domain filtering, and then the signal after the inverse Fourier transform, the time-domain signal and draw!
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gaobor滤波工具 先转到频域再转回时域,不错的源码 很好用-Gaobor filtering tools to return to frequency domain to time domain, a good source is in good condition
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Filtering summation way broadband beamforming, For time-frequency analysis algorithm, Virtual power wireless sensor network coverage.
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