简单的Hopfield神经网络数字识别

这里包含了几种用matlab编的神经网络的程序(Here includes several series using matlab neural network procedures)

一个音符起点检测程序，其中使用了非负矩阵分解以提取特征减少运算量(NOTE ONSET DETECTION USING NMF)

PCA MATLAB程序.PCA MAATLAB程序PCA MATLAB程序. (PCA MATLAB program. PCA MAATLAB program PCA MATLAB program.)

说明：  OFDM高斯信道下的性能仿真，大大提高了频谱的利用率，适合初学者使用。(Performance simulation in OFDM Gauss channel greatly improves the utilization of spectrum and is suitable for beginners.)

说明：  对比了基础dv-hop算法，和改进的2d-hyperbolic 方法，引进了权重因子，在很大程度上改进了定位精确度。(Compared with the basic DV hop algorithm and the improved 2D hyperbolic algorithm, the weight factor is introduced to improve the positioning accuracy to a large extent.)

非线性光纤光学中用来仿真光纤通信系统中的三阶色散的程序，对刚开始进行科研的人有很大帮助。(Nonlinear Fiber optics, optical fiber communication system is used to simulation of the third-order dispersion in the procedures of the research has just started there is a great help.)

This is the matlab soution manual for the execrsis behind the chapeter 7 of AFT text book

在OFDM系统中进行PAPR仿真的主程序，可以计算PAPR的CCDF(CCDF calculation for PAPR simulation in OFDM systems)

The Olympic filter is named for the system of scoring used in certain Olympic events, in which the highest and lowest scores are dropped and the remaining ones are averaged.

一维信号的小波分解和重构，利用小波变换对一维声音信号进行分解和重构(One-dimensional signal wavelet decomposition and reconstruction, using wavelet transform one-dimensional sound signal decomposition and reconstruction)