搜索资源列表
Disfrft
- 特征分解型求取离散分数阶傅里叶变换 特征分解算法通过求ＤＦＴ的核矩阵Ｆ（ｋ，ｎ）的特征值 和特征向量构造ＤＦＴ核矩阵的分数幂，以此作为Ｆａ（ｋ，ｎ） 来计算ＤＦｒＦＴ。(The kernel matrix eigenvalue decomposition algorithm for DFT F (k, n) characteristic value And the feature vectors are constructed as the fractional powers of the DF
hua_fft
- 可以对振动信号进行傅里叶变换，得到幅值谱或功率谱。(Fourier transform of the vibration signal can be used to obtain amplitude spectrum or power spectrum.)
GIS_stft
- 利用工具箱实现短时傅里叶变换，并画出等高线图(program for short time Fourier transform using toolbox)
exp2
- MATLAB图像处理中傅里叶变换，离散余弦变换，小波变换的简单应用(simple applications of Fourier transform, discrete cosine transform, wavelet transform in MATLAB image processing,)
声音解析matlab
- 对非平稳信号进行分段、截取，再做短时傅里叶变换，分析其频谱特性，并找到各个时间节点的频率特性，以便分析不同事件段内的声音特征。(The non-stationary signals are segmented and intercepted, and then the short-time Fourier transform is used to analyze their frequency spectrum characteristics, and the frequency charact
STFFTtool
- 对非平稳信号进行分段、截取，将非平稳信号转化为平稳信号，再做短时傅里叶变换，分析其频谱特性，并找到各个时间节点的频率特性，以便分析不同事件段内的声音特征。(The non-stationary signals are segmented and intercepted, and then the short-time Fourier transform is used to analyze their frequency spectrum characteristics, and the fre
STFFTtool2
- 对非平稳信号进行分段、截取，再对处理过后的短时信号做短时傅里叶变换，分析其频谱特性，并找到各个时间节点的频率特性，以便分析不同事件段内的声音特征，达到区分不同声音的目的。(The nonstationary signals are segmented, and then the interception, the short-time signal after processing the short-time Fourier transform, the analysis of the spe
STFFTtool3
- 对非平稳信号进行分段、截取，再对处理过后的短时信号做短时傅里叶变换，分析其频谱特性，并找到各个时间节点的频率特性，以便分析不同事件段内的声音特征，一图像的形式表达出，最终达到区分不同声音的目的。(The nonstationary signals are segmented, and then the interception, the short-time signal after processing the short-time Fourier transform, the analysi
keypoint
- 对非平稳信号进行分段、截取，再对处理过后的短时信号做短时傅里叶变换，分析其频谱特性，并找到各个时间节点的频率特性，以便分析不同事件段内的声音特征，以图像的形式表达出，最终达到区分不同声音的目的。(The nonstationary signals are segmented, and then the interception, the short-time signal after processing the short-time Fourier transform, the analysi
STFT
- 数字信号处理中的短时傅里叶变换程序，窗函数长度20， 默认为矩形窗，截取时间间隔 <=Nw/2。适用于时频分析(The present code is sample,you can buy a digital signal processing book that published on Xi'an University of Electronic Science and Technology publisher.)
hunhe2
- 对吉他的单音进行短时傅里叶变换 选取主音旋律(The guitar tone of the short time Fourier transform from the melody)
px4
- 对pixhawk采集的加速度值做傅里叶变换(Do the Fourier transform to the acceleration value collected by pixhawk)
fft
- 对信号做傅里叶变换和包络分析，适合初学者信号分析，简单易懂(Fourier transform and envelope analysis of the signal, suitable for beginners signal analysis, easy to understand)
freqresponse
- matlab对信号的处理，主要是针对振动信号的处理，包括加速度积分到位移，时域经快速傅里叶变换到频域(The signal processing of MATLAB is mainly aimed at the processing of vibration signal, including acceleration integral to displacement, time domain and FFT to frequency domain)
find_feature_contour
- 输入3D点云，并进行傅里叶变换以及获取其轮廓特征。
fly
- 进行签单傅里叶变换的代码，新手可以借鉴学习或者提出问题(Fourier transform code)
频域处理
- 对影像进行频率域处理，利用傅里叶变换得到结果(The image is processed in frequency domain and the results are obtained by Fourier transform)
FFT
- 利用matlab进行傅里叶变换及反变换,实现空域到频域，频域到空域的图像处理(Using Fourier transform and inverse transform, to achieve the airspace to the frequency domain, frequency domain to the airspace image processing)
li3
- 本程序可以分别实现对两个振动及其合成振动的傅里叶变换(This procedure can be achieved respectively for the two vibration and its synthetic vibration Fourier transform)
u6
- 本程序对渐变鸟鸣信号与脉冲信号进行卷积，将卷积后的傅里叶变换与这两个函数傅里叶变换后的乘积进行比较。(This procedure convolution of the gradual variation of bird signals and pulse signals, the convolution of the Fu Liye transform and the two functions, Fu Liye transform after the comparison of the pr