pid-b

改进包络法去除 emd 端点效应 改进包络法去除 emd 端点效应(improve envoy)

说明：  标准响应面代理模型可用于可靠性分析，优化设计等结构分析领域(Standard Response Surface Agent Model can be used in structural analysis fields such as reliability analysis, optimization design, etc.)

相干函数的MATLAB实现程序，欢迎大家下载(Coherence function of the MATLAB implementation process, are welcome to download)

信息隐藏的函数，matlab 编写，简单方便(A function of information hiding, matlab prepared, simple and convenient)

典型的多项式快速傅里叶变换程序，现在只做到三阶，为初学者提供参考。(A typical polynomial fast Fourier transform program, now only do third-order, provide a reference for beginners.)

极大似然估计器用于简单通信系统模拟,估计A1,A2: s1 = x11*A1 + x12*A2 s2 = x21*A1 = x22*A2 r1 = s1 + n1 r2 = s2 + n2(Maximum likelihood estimator for a simple communication system simulation, it is estimated that A1, A2: s1 = x11* A1+ x12* A2 s2 = x21* A1 = x22* A2 r1 = s1+ n1 r2 = s2+ n2)

利用游程编码和哈弗曼编码实现灰色图片的压缩和解码，压缩比可达15倍(Using run-length encoding and Hafu Man Coding and decoding of gray image compression, the compression ratio up to 15 times)

基于运动区域和运动区域外截矩形进行运动目标检测的程序(campaign based regional and extra-regional movement closed rectangular exercise target detection procedures)

说明：  pq分解法都潮流计算，适合电力系统都人员使用，作为参考(pq)

sin 函数功能，用matlab，比较常用，大家可以做个参考(function of sin by matlab)