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wavelet_edge
- % 该算法采用的是样条小波,为了更好的检测边缘,用a tuous 算法代替了mallat算法。 % 该算法和mallat快速算法主要区别: % 1 a tuous 算法不需要抽取偶数样本,所以奇异检测定位更准确,相应的重构是不需要插零。 % 2 a tuous 算法需要对滤波器进行伸缩。
FFTmatlab
- 做FFT只能看出信号在0到分析频率(采样频率的一半)之间的相对分布,或者说得到以采样频率归一化的频率。 采样频率即取样频率,指每秒钟取得信号样本的次数。所以,采样频率就是1/(delta t),其中delta t为连续采两次信号的时间间隔。 采样频率/采样点数=频率分辨率。 -Signal do FFT can only be seen in the 0 to the analysis frequency (half the sampling frequency) relative
wavelet-sofm
- 本文运用了神经网络中的自组织向量机和小波变换相结合,实现了图象的压缩,通过训练样本,得到好的结果-In this paper, the neural network of self-organizing vector machine and wavelet transform combining image compression achieved through the training samples obtained good results
test1
- 在某个音乐厅内,原始音频信号的回音由于墙壁和天花板等的反射而产生,听众所感受到的音频信号是 和它的回音的合成。令y(n)=x(n)+ax(n-k),其中x(n)=cos(0.3pin)+0.5cis(0.6pin),a=0.1,k=50.产生100个样本,使用Matlab工具,求出其自相关,从中观测确定a和k. -In a concert hall, the original audio signal echo the walls and ceilings due to the reflec
bi-ji-shi-bie
- 采用“纹理识别”的方式进行笔迹鉴别,利用Gabor变换提取不同频率、不同方向的笔迹特征,最后使用KNN或SVM(支持向量机)对待测样本进行类别判别。-A " texture recognition" approach to handwriting identification using Gabor transform to extract different frequency, the handwriting characteristics of different dir
xiaobo
- 利用Gabor小波变换解决人脸识别中的小样本问题.caj-Face Recognition using Gabor wavelet transform to solve the small sample size problem. Caj
interpolation
- 是小波变换的C语言程序~ 还有插值函数 采用正弦信号做样本-Is the wavelet transform of the C language program- there are interpolation functions using sinusoidal signals with sample
KS-sampling
- MATLAB实现kennard-stone选样本算法 -MATLAB kennard- stone selected sample algorithm
Autocorrelation
- 编写MATLAB程序,产生协方差函数为C(τ)=9??^(?10|??| )的零均值平稳高斯过程,产生一条样本函数.测量所产生样本的时间自相关函数,将结果与理论值比较。(Procedures for the preparation of MATLAB produced C covariance function (tau) =9^ (- 10||) zero mean stationary Gauss process to produce a sample function. Measuring
main
- 根据谐波叠加法生成PSD曲线对应的时域代表性样本(The representative samples of PSD curves corresponding to time domain are generated based on harmonic superposition method.)