搜索资源列表
matlab
- matlab非平稳信号噪声消除 小波变换与傅里叶变换对比
e1
- 16点基4—FFT算法编程。输入16点的序列,采用基4-fft方法计算其快速傅里叶变换。-16 points-based 4-FFT algorithm for programming. Enter the 16-point sequence, with the base 4-fft method for calculating the fast Fourier transform.
ding
- 选取windows系统自带的ding.wav信号作为分析对象,在Matlab软件平台下,利用函数wavread对音频信号进行采样,记住采样频率和采样点数,听一下原始声音sound(y, fs, bits)。 (2)音频信号的频谱分析,先画出音频信号的时域波形;然后对音频号进行快速傅里叶变换fft(y,N),N取32768,画出信号的频谱特性,加深对频谱特性的理解。 (3)根据频谱,反演时域特性,画出时域波形。寻找幅值最大的两个频率,此频率除以fft点数在乘以采样频率就是信号的主频,即可合
DCT
- 实现图像的DCT高通、低通滤波器并与傅里叶变换做比较.有图可见,经DCT低通滤波后,图像变得很模糊。因为DCT是FFT取其实部,能量减少,因此图像变得很模糊,没有经FFT滤波后的效果好。 经DCT高通滤波后的图像: 经DCT高通滤波后,图像的低频部分被滤除掉,图像变黑,只有边缘的痕迹可见。-The DCT of image high-pass, low pass filter and compared with the Fourier transform.
exp2_FFT_DIT
- 设计一个按照时间抽取的基2快速傅里叶变换(基2FFT-DIT)。输入倒位序,输出自然顺序。-To design a time of extraction according to the base 2 Fast Fourier Transform (base 2FFT-DIT). Input inversion sequence, the output natural order.
phase
- hilditch.m是hilditch细化算法。 RC_unwrap.m是逐行逐列去包裹算法。 least_unwrap.m是最小二乘去包裹算法。 FTP.m是利用傅里叶变换提取相位。 sincosfilter.m是正余弦滤波算法。 以上算法在相位图的相关计算中常用到,比如电子散斑干涉、全息干涉、相移技术等。-hilditch.m is hilditch refinement algorithm. RC_unwrap.m is listed line by line u
DFT_matlab
- 是基于傅里叶变换的数字图像水印的matlab源代码-Is based on the Fourier transform of digital image watermarking matlab source code
signal
- 通信原理实验代码,AM信号,单边带信号,双边带信号的产生以及傅里叶变换-Communication Theory test code, AM signal, single-sideband signal, as well as double-sideband signal generation Fourier transform
FFTchengxu
- 快速傅里叶变换, 频谱的泄露,混叠误差实例的matla程序。-Fast Fourier Transform: In order to reduce the number of DFT calculations of a fast algorithm.
Fractional
- 完成了分数阶傅里叶变换,对学习分数阶傅里叶变换和有关变换的人有帮助-Fractional Fourier Transform ,reference for Fractional Fourier Transform
SimpleSENSEreconstruction
- 简单SENSE图像重建,即使通过反傅里叶变换重建出最终图像-The data was acquired from 4-channel array coil using EPI sequence (2-shot, matrix: 64X64, TE: 50 ms) at a 1.5T scanner. The code estimates the coil sensitivity profiles directly from the image with anatomical contrast b
T2F
- T2F子函数,在做傅里叶变换时调用。我一开始编程序时忘了加它,结果WARN ME 说未定义T2F。-T2F subroutine, called when doing Fourier transform. I started to compile the program forgot to add it, and the result is undefined WARN ME said T2F.
F2T
- F2T子函数,在做傅里叶变换时调用的函数。也可做成脚本文件。-F2T subroutine, called when doing Fourier transform function. Can also be made into a scr ipt file.
matlab
- 简单的傅里叶变换代码 MATLAB 新手适用-T to F
fseries
- 傅里叶变换,FSERIES 返回傅里叶系列系数,代码中对参数有详尽的解释说明,方便看懂-Fourier transform, FSERIES back Fourier series coefficients, the code of the parameters detailed explanations, easy read
chengxu
- 数字信号变换处理技术实现 研究数字信号离散傅里叶变换数字信号离散余弦变换数字信号离散希尔伯特变换数字信号Chirp Z变换。 -Digital signal processing technology transform Discrete Fourier transform of digital signal digital signal discrete cosine transform discrete Hilbert transform digital signal digital s
1
- 信号分析处理的源程序,包括傅里叶变换、DFT、FFT、等的例程地对地导弹的-Signal analysis and processing of the source, including Fourier transform, DFT, FFT, and other routine ground-
c
- 快速傅里叶变换程序,一般程序,具有通用性(Fast Fourier transform)
积分变换
- 傅里叶变换 Z变换 拉普拉斯变换的gui(Fu Liye transform, Z transform, Laplasse transform, GUI)
MATLAB数字信号处理仿真系统(GUI)
- 本课题基于MATLAB平台的数字信号处理仿真演示系统。数字信号即离散信号,本设计带有一个丰富得GUI人机交互界面,一共包括4个部分,分别为:离散时间信号的卷积,基本函数的Z变换(单位阶跃信号,脉冲信号,斜变信号,正余弦信号,指数系列信号),Z变换的基本性质(线性,位移,z域尺度变换,时域卷积),傅里叶变换的基本性质。是一个不错的选题,GUI设计逻辑清晰,章节清晰,层次明了。(This project is based on MATLAB platform of digital signal pr