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用matlab如何实现fft变换
用matlab如何实现fft变换,进而得到经过fft变换后的图像(How to implement FFT transformation with MATLAB)
- 2017-10-11 10:31:22下载
- 积分:1
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wavelet
对图像进行小波变换的分解和重构的代码,包含以为信号的处理。(
The image decomposition and reconstruction of wavelet transform code, including that the processing of the signal.)
- 2015-07-12 20:45:59下载
- 积分:1
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wavelet
利用matlab中的小波变换函数,对图像进行小波降噪,并分析降噪效果。(The wavelet transform using matlab function, the image wavelet noise reduction, and analyze the noise reduction effect.)
- 2013-07-22 16:17:51下载
- 积分:1
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PSK
PSK信号载波相位符号定时联合估计,载波环采用判决反馈环,去除噪声平方损耗,定时模块采用早迟原理,
里边有详细的注释,希望对大家有用。点击即可运行。(PSK signal carrier phase joint estimation of symbol timing, carrier ring using decision feedback loop, remove the noise square loss, using early-late timing module principle, inside detailed notes, we want to be useful. Click to run.)
- 2010-07-04 12:36:26下载
- 积分:1
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H2
说明: 实现对离散信号的连续小波变换进行时频域分析,判断信号的稳定性(The continuous wavelet transform of the signal is analyzed in time and frequency domain)
- 2020-08-03 20:42:49下载
- 积分:1
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wavedec2
说明: 本代码利用小波变换,实现了两幅图像的融合,使用了小波分析工具箱wavemenu,使用了小波分析函数wavedec2()进行小波变换(The code using wavelet transform, to achieve a fusion of two images, using wavelet analysis toolbox wavemenu, using wavelet analysis function wavedec2 () wavelet transform)
- 2011-04-04 14:03:23下载
- 积分:1
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the-implementation-of-the-SVD
svd算法的实现,用matlab实现SVD算法(the implementation of the SVD algorithm)
- 2021-03-10 09:49:26下载
- 积分:1
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wtquzao
说明: 小波阈值去噪,用于对以为信号降噪处理,代码为matlab代码,亲测有效(Wavelet threshold denoising)
- 2019-06-21 09:20:45下载
- 积分:1
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untitled
数字基带传输基带信号,指未经调制的信号。这些信号的特征是其频谱从零频或很低频率开始,占据较宽的频带。
基带信号在传输前,必须经过一些处理或者某些变换(如码型变换、波形和频谱变换)才能送入信道中传输。处理或变换的目的是使信号的特性与信道的传输特性相匹配。
数字基带信号是消息代码的波形表示。表示形式有多种,有单极性、双极性波形,归零和非归零波形,差分波形、多电平波形之分,各自有不同的特点。
研究数字基带信号通过加性高斯白噪声信道的传输,并且假设信道除了叠加高斯噪声外,不会对信号产生其他失真。(matlabSimulation(pulse amplitude modulation) modulation signal in AWGN (additive white Gaussian noise AWGN (Additive White Gaussian Noise)) under the channel bit error rate and bit error rate performance, and compared with the theoretical value.)
- 2018-05-08 18:47:36下载
- 积分:1
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synsq toolbox v1.1
时频分析,同步挤压小波变换,一种更精细的时频表示!(Signal time-frequency analysis, synchronous extrusion wavelet transform, a finer time-frequency said!!!!)
- 2021-03-31 14:39:09下载
- 积分:1