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说明：  基于主分类分析的SAR图像变化检测MATlt实验程序(Based on the analysis of the main SAR image classification change detection experiment)

AM、DSB 调制及解调 用matlab产生一个频率为1Hz，功率为1的余弦信源m(t)，设载波频率ωc =10 Hz， m0 = 2 ,试画出： 􀁺 AM 及DSB 调制信号的时域波形； 􀁺 采用相干解调后的 AM 及DSB 信号波形； 􀁺 AM 及DSB 已调信号的功率谱； 􀁺 调整载波频率及 m0，观察分的AM 的过调与DSB 反相点现象。 􀁺 在接收端带通后加上窄带高斯噪声，单边功率谱密度0 n = 0.1，重新解调。 (AM, DSB modulation and demodulation Matlab produce a frequency for 1 Hz, power of 1 cosine source m (t), set the carrier frequency ω c = 10 Hz, M0 = 2, try drawing out: )

多变量多尺度熵分析程序，对研究信号的来说，很重要，代码来自一学者网站(Multivariate multiscale entropy analysis program for the study of the signal, it is important, a scholar website code)

（1）编程建立Gold序列，仿真Gold序列的波形； （2）仿真Gold序列的自相关和互相关特性。 （3）编程仿真直接扩频通信系统模型，画出扩频前后信号波形及频谱。((1) programming Gold sequence and simulating the waveform of Gold sequence; (2) the autocorrelation and cross correlation characteristics of the simulated Gold sequences. (3) programming direct spread spectrum communication system model, draw the signal spectrum and spectrum before and after spread spectrum.)

说明：  实现粒子群算法和鲸鱼算法，可调通，用于测试23个函数(Realize particle swarm optimization and whale algorithm)

三参数模型 系统辨识 自己编写的通过了测试，并写了论文(The three-parameter model system identification adopted their own written)

指纹识别的matlab实现,还有相关图片(Fingerprint Identification of matlab to achieve, but also related picture)

This file enables symbolic computation of Zernike polynomials. The usage should be straightforward. Have fun.

数字图像处理课程上机实验4_Matlab图像锐化-Sobel，Laplacian算子(Digital Image Processing courses on experiments 4_Matlab image sharpening-Sobel, Laplacian operator)

Activate BA entry. And if Time is nozero, start timer.