merge_closest

Frame segmantation in matlab

说明：  求一段信号的过零率，可以用来提取信号的特征(Seeking a signal zero crossing rate, can be used to extract signal features)

对信号进行小波变化，找出QRS波形，并利用不同方式进行消噪，从而用图形比较效果(It find the QRS wave of an input signal using wavelet transform and depress noise using several ways,so compare their figure.)

GM（1，1）模型的MATLAB源代码2(GM model)

BT法求功率谱，有较为详细的注释，简单易懂，希望对研究这方面的人员有帮助。(BT method of power spectrum, there are detailed notes, easy to understand, to contribute to the study of this aspect of the personnel.)

1)把您的联系电话号码 通过DTMF 编码生成为一个 .wav 文件。 2)对所生成的DTMF文件进行解码(1) put your contact phone number via DTMF codes generated as a. Wav file. 2) files generated by the DTMF decoder)

基于随机共振的弱信号检测，sr为龙格库塔方法解方程，rs为检测的主程序(Based on stochastic resonance in weak signal detection, sr for the Runge-Kutta method to solve the equation, rs for the detection of the main program)

vigenere密码在起初的破译中是靠穷举法，找出与阅读习惯最适合的明文，但是也可以先缩小穷举范围，再查找(vigenere initial crack passwords by brute-force method is to identify the most suitable and clear reading habits, but can also be reduced exhaustive range, and then find)

Matlab optimisation

细胞神经网络，简称为CNN，由于其能够产生混沌吸引子，而被广泛应用于加密系统中，本代码为画出CNN的超混沌吸引子。(Neural networks, referred to as CNN, due to its ability to generate chaotic attractor, and is widely used encryption system, the code for drawing CNN super chaotic attractors.)