ALOs

读取字符串，统一转换成小写后，删除相同的字符(Read the string converted to lower case after the reunification, delete the same character)

说明：  M文件编写的BP神经网络例子，有学习和识别的功能(M document prepared by the example of BP neural network, learn and identify the function)

说明：  用matlab环境编写的一些程序，供初学者了解，研究和拓展(Matlab environment with some of the procedures written for beginners to understand, study and development of)

最新cdf工具箱，可在matlab中读取cdf文件，有详细word说明。(The latest cdf toolbox, in matlab read cdf file detailed word description.)

采用Simulink仿真工具，通过对二元对称信道的仿真，研究信道编码（如Turbo码等）对误码率的改善情况。(Simulink simulation tool used, through the binary symmetric channel simulation to study the channel coding (such as Turbo code, etc.) on the error rate to improve the situation.)

MFCC参数和LPCC参数需要频繁使用的语音的说话人识别分析还需要使用大量的这些特征参数,这就需要研究MFCC和LPCC算法和参数提取的原则。因为我们需要了解与人交谈的过程中,我们要进行建模 率不构成线性关系，而更偏向于对数关系，这就使得人耳对低频信号比高频信号更敏感。Mel频率的提出是为了方便人耳对不同频率语音的感知特性的研究。频率与Mel频率的转换公式为(MFCC parameters and LPCC parameters are parameters of speaker recognition which requires frequent use of voice analysis also need to use a lot of these characteristic parameters, This requires research MFCC and LPCC algorithm and the principle of parameter extraction. Because we need to understand the process of talking to people, we want to conduct a speaker modeling the perception of the human ear does not constitute a linear relationship with frequency, and prefer to logarithmic relationship, which makes the human ear is sensitive to low frequency signal is better than high frequency signal. Mel frequency is put forward in order to facilitate the ear of the study of speech perception characteristics of different frequency. For frequency and Mel frequency conversion formula)

code for synthesis of speech files for processing

用汉宁窗进行FIR处理实例，并给出幅频响应特性图形(Hanning Window with examples of FIR processing, and gives the amplitude frequency response graph)

神经网络在线训练和控制仿真程序，控制一个二关节机器人。(online training neural network simulation and control procedures, controls a two joint robot.)

此程序提供两种一维信号信息熵的计算方法，其中一种是近似信息熵计算，可以有效的识别信号的复杂度(This program provides two kinds of one-dimensional signal and the calculation method of information entropy is one kind of approximate entropy calculation, can effectively identify the complexity)