matlab-zuixiaoerchengnihe

matlab编程规则与技巧，系统的介绍了使用matlab语言的编程用法和技巧，加深了大家对matlab课程的学习。(matlab programming rules and techniques, the system introduces the use of matlab programming language usage and skills, deepened everyone matlab courses.)

系统辨识二阶递推最小二乘算法实现。对数据进行了归一化的预处理，并且对原始数据进行一次采样(Second-order recursive least squares system identification algorithm)

BPSK解调的matlab仿真程序，里面包括匹配滤波器，同步，解调，误码计算等(BPSK demodulation of Matlab simulation program, which includes matching filter, synchronous demodulation, BER calculation)

matlab下的对于图像的置乱方法arnold置乱(For scrambling methods matlab image scrambling under arnold)

用ELM实现手写数字的识别，快速，用MNIST数据库(Handwritten numbers recognition realized by ELM)

神经网络的 语音识别 初学者可以看看 希望对大家有帮助(Speech recognition neural network can look at beginners)

Bloch simulator. [mx,my,mz] = bloch(b1,gr,tp,t1,t2,df,dp,mode,mx,my,mz) Bloch simulation of rotations due to B1, gradient and off-resonance, including relaxation effects. At each time point, the rotation matrix and decay matrix are calculated. Simulation can simulate the steady-state if the sequence is applied repeatedly, or the magnetization starting at m0. INPUT: b1 = (Mx1) RF pulse in G. Can be complex. gr = (Mx1,2,or 3) 1,2 or 3-dimensional gradient in G/cm. tp = (Mx1) time duration of each b1 and gr point, in seconds, or 1x1 time step if constant for all points

说明：  通过matlab编程实现AP聚类算法，聚类结果输出(The AP clustering algorithm is realized by MATLAB programming, and the clustering results are output)

说明：  一种新的图像加密方法，把图像看成3位的，来进行3维图像加密。。。。。。。。。。。。。。(A New Approach of Image Encryption Using 3D)

改变声音信号采样频率。应分别考虑由低到高和由高到低，最好包括声音采集和回放等功能。(To change the audio signal sampling frequency. Should be considered separately from low to high and high to low, preferably including audio capture and playback functions.)