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用FFT实现的频谱分析,这里只是MATLAB代码(matlab)

Calculates the Variance Ratio Test of a time series, with or without the heteroskedasticity correction. (Calculates the Variance Ratio Test of a time series, with or without the heteroskedasticity correction.)

matlab学习ppt，适于初学者学习交流(The book is intended for beginners)

这是一个emd的算法的程序，有需要的可以下载用用，比较简单的一个，希望有同道中人批评指正(This is an emd algorithm program, there is a need can be downloaded to use, relatively simple one, I hope fellow human criticized the correction)

A DISCRETE SPREAD SPECTRUM CODE WRITTEN IN MATLAB

基于matlab简单图像处理系统中对图片的加噪功能(Based on a simple matlab image processing system for image plus noise functions)

说明：  线性调频信号匹配滤波器的设计与实现，详细(LFM matched filter design and implementation details)

重建图像，使图像更为清晰明了，也可以减少程序员的工作量(Reconstructed image, the image is more clarity, can also reduce the workload of the programmer)

Neural network Xor example

OFDM系统通过在时域符号前插入大于信道冲击响应长度的循环前缀（CP）可以避免符号间干扰(ISI)和载波间干扰(ICI)。但是，过长CP会使得数据传输效率降低。可以采用最小均方误差（MMSE）信道缩短均衡技术来压缩信道冲击响应长度。(OFDM systems avoid inter-symbol interference (ISI) and inter-carrier interference (ICI) by inserting a cyclic prefix (CP) larger than the channel impulse response length before the time-domain symbol. However, long CP will reduce the efficiency of data transmission. A minimum mean square error (MMSE) channel shortening equalization technique may be employed to compress the channel impulse response length.)