channel

在一段音频信号中加入了随机噪声，用matlab编程实现去噪!(This File shows an example for denoising via hard thresholding of Fourier coefficients.)

使用BP神经网络算法对脑电信号进行分类识别。(BP neural network algorithm using EEG classification.)

基于KT指数的船舶旋回运动仿真，可以在此基础上进行修改添加，方便大家(KT index based on ship motion simulation cycle can be modified on this basis, to add, to facilitate)

波数域算法又称为距离徙动算法（Range Migration Algorithm，RMA）或-算法，由Cafforio等提出。该算法分析距离处理后信号的二维频谱，通过二维频域匹配滤波进行相位补偿，在完成方位聚焦的同时完全校正距离徙动。由于其中的Stolt变换能克服SAR信号中距离徙动和SRC对斜距的依赖，因此波数域算法是一种理想的成像算法，尤其在处理大斜视角和长合成孔径的SAR数据时。但Stolt变换需要插值，降低了处理效率并引入额外的误差。(The wavenumber domain Algorithm is also called Range Migration Algorithm (RMA) or -algorithm, which is proposed by Cafforio et al.The algorithm analyzes the 2-d spectrum of the signal after the distance processing, carries out phase compensation through the 2-d frequency domain matching filter, and completely corrects the distance migration while completing the azimuth focusing.Because the Stolt transform can overcome the SAR signal range cell migration and SRC dependence on oblique distance, thus wavenumber domain algorithm is an ideal imaging algorithm, especially when dealing with large squint Angle and long synthetic aperture of SAR data.But Stolt transformation requires interpolation, reduces processing efficiency and introduces additional errors.)

calculate of zernike momemt of figure. calculate of complex moment it use for extraction feature. edge detection find treshold

simulink基础经典教程,适用于工程应用，讲解非常详细。(introduction to simulink with engineering application)

用matlab实现图象直方图的绘制，有四个程序，很适合初学者使用(using Matlab image histogram shows that there are four procedures that are very suitable for beginners)

混沌水声通信发射端程序。用于chaos序列的生成及发射。(Chaos underwater acoustic communication transmitting terminal program.Used to generate chaos sequence and launch.)

说明：  CT图像重建的变换类算法，该方法采用fourier变换算法(CT image reconstruction Transform algorithm, the method used fourier transform algorithm)

产生一个有带内相位噪声，毛刺噪声，白噪声的LO信号。(creative a LO signal with in band phase noise， spurs and noise floor.)