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Description: matlab中应用小波变换的几个程序
包括cwt,dwt,fft,fftshift的使用
版本为matlab7.0
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Size: 2377 |
Author: 杨青禾 |
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Description: matlab中应用小波变换的几个程序
包括cwt,dwt,fft,fftshift的使用
版本为matlab7.0-Application of wavelet transform matlab several procedures, including cwt, dwt, fft, fftshift use version matlab7.0
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Size: 2048 |
Author: 杨青禾 |
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Description: 这是一个一维离散小波变换DWT并行算法，C语言实现-This is a one-dimensional discrete wavelet transform DWT parallel algorithm, C language
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Size: 2048 |
Author: chj |
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Description: OFDM is a new scheme for data transmission with several advantageous features. In this report a survey of all existing OFDM systems are being presented. Starting with simple FFT based OFDM the other variants like DCT-OFDM, Interspersed OFDM and DWT based OFDM are studied.-OFDM is a new scheme for data transmission with several advantageous features. In this report a survey of all existing OFDM systems are being presented. Starting with simple FFT based OFDM the other variants like DCT-OFDM, Interspersed OFDM and DWT based OFDM are studied.
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Size: 373760 |
Author: satish |
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Description: 基于压缩感知的图像处理，分别使用二维DCT、FFT和一维dwt变换对图像信号进行稀疏变换，然后使用正交匹配追踪算法进行重构，在进行相应的逆变换-This is a image processing procedure based on compressed sensing which respectively uses two-dimensional DCT, FFT and one-dimensional dwt transform to sparse the image signal and then uses the orthogonal matching pursuit algorithm for reconstruction.
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Size: 41984 |
Author: 刘会影 |
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Description: 本文分别对FFT和DWT的基本算法做了简单的介绍，FFT和DWT算法成为数值代数方面最活跃的研究领域。-the explain of FFT and DWT s algorithm
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Size: 130048 |
Author: fang huan |
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Description: discreate wavelet transform for medical image compresssion
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Size: 1024 |
Author: khanth |
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Description: c# 写的图像时频变换程序。包括DCT,FFT,DWT,WHT以及对应的逆变化。-c# write image frequency conversion program. Including inverse DCT, FFT, DWT, WHT, and the corresponding changes.
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Size: 171008 |
Author: 于予 |
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Description: 图像压缩感知,稀疏基为FFT或DWT（其中FFT是构造正交变换矩阵，DWT是对高频系数进行测量）；重构方法为OMP-compression sensing of image based on FFT or DWT
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Size: 100352 |
Author: 田文 |
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Description: MRI image decomposition and reconstruction using FFT.
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Size: 26624 |
Author: KUNDAN GHOSH |
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Description: 实验2绿叶变色，实验3图像数字化显示，实验4图像类型转换，实验5对比度增强，实验6直方图均衡化和规定化，实验7噪声添加和空域滤波，实验8边缘增强和边缘检测，实验9彩色图像增强，fft，dct，dwt变化及压缩，滤波器，实验20运动退化和维纳波复原，实验21图像的几何畸形校正等实验的代码和报告-Experiment 2 leaves change color, 3 digital image display, the image type conversion, 4 5 contrast enhancement experiment, the experiment 6, histogram equalization and regulations 7 noise adding and spatial filtering experiment, experiment and edge enhancement and edge detection, the experiments of 9 color image enhancement, FFT and DCT, DWT and compression, filter, degradation experiment of 20 movement and wiener recovery, experiment 21 image geometric deformity correction code and report
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Size: 4436992 |
Author: 陈琛 |
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Description: 图像时频变换实例，包括FFT变换、FFT逆变换、DCT变换、DCT逆变换、DWT变换、DWT逆变换、WHT变换、WHT逆变换等。-Examples of image frequency conversion, including FFT transform, FFT transform, DCT transform, DCT transform, DWT transform, DWT transform, WHT transform, inverse transform, etc..
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Size: 3346432 |
Author: ycr40 |
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Description: DCT+DWT+FFT 数字图像水印程序 来自论文 仅供参考-DCT+ DWT+ FFT digital image watermarking program the paper for reference only
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Size: 2048 |
Author: 王术 |
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Description: Here, wavelets are used in Orthogonal frequency division multiplexing. Wavelets are small waves having amplitude increase starting zero and reduces back to zero. In conventional OFDM, IFFT is used at the transmitter side and FFT is used at receiver. In case of Wavelet OFDM, IFFT is replaced with IDWT and DWT is used instead of FFT. In OFDM cyclic prefix is added to reduce inter channel interference and inter carrier interference. By using wavelet transform, cyclic prefix is not needed. Hence, it has high spectral efficiency. Wavelet transform the signal one domain to time and frequency domain. -Here, wavelets are used in Orthogonal frequency division multiplexing. Wavelets are small waves having amplitude increase starting zero and reduces back to zero. In conventional OFDM, IFFT is used at the transmitter side and FFT is used at receiver. In case of Wavelet OFDM, IFFT is replaced with IDWT and DWT is used instead of FFT. In OFDM cyclic prefix is added to reduce inter channel interference and inter carrier interference. By using wavelet transform, cyclic prefix is not needed. Hence, it has high spectral efficiency. Wavelet transform the signal one domain to time and frequency domain.
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Size: 1024 |
Author: Salini |
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Description: programing delphi for stft cwt dwt
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Size: 979968 |
Author: Mr.BRYL
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Description: 对已测信号进行傅里叶变换，进行滤波器降噪，进行功率谱分析(Perform Fourier transform on the measured signal, perform filter noise reduction, and perform power spectrum analysis)
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Size: 2048 |
Author: 西门吹猪 |
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