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Pulse-code modulation (PCM) is a method used to digitally represent sampled analog signals. It is the standard form of digital audio in computers, Compact Discs, digital telephony and other digital audio applications. In a PCM stream, the amplitude of the analog signal is sampled regularly at uniform intervals, and each sample is quantized to the nearest value within a range of digital steps. Quantization Noise occurs in PCM.

LMS算法，可以实现在计算机上的仿真，通过仿真可以清楚的了解结果(LMS)

此程序主要是用Matlab进行点云数据的三维建模，对用Matlab进行三维重建有实用价值。(The procedure is to use Matlab for modeling three-dimensional point cloud data on the three-dimensional reconstruction with Matlab has practical value.)

说明：  光通信计算，利用公式计算折射率分布，特别为化学方法产生的器件(optical communication, the use of the refractive index distribution formula, particularly for the chemical device)

在MATLAB中的数字信号ASK调制解调(ASK modulation and demodulation)

雨流计数法在matlab上的实现，个人编辑的简短程序。(Rain flow counting method implemented on matlab, the short program personal editing.)

　　非晶态硅Forouhi-Bloomer模型参数拟合计算 　　半导体材料对光的吸收作用用k表示。材料的k一般都会随着入射光的波长的改变而改变。其变化规律因材料而异，但是对于同一类型的材料常可以用一种模型来表示。但是对于特定的材料，其模型参数的确定常的通过曲线拟合的方法得到的。 　　题目： 　　对于非晶态的硅，其K满足如下模型： 　　 　　其中A、B、C为系数，且均大于零，并满足4C-B2>0 Eg为禁带宽度，值为1.3 ev , E为能量。 　　现已知一组E对应的K值，通过曲线拟合的方法求出A,B,C。(Curve fitting)

基于OWTS系统的电力电缆介质损耗正切角检测，能够方便快速的对电力电缆进行检测。(Based OWTS system power cable dielectric loss tangent detection, able to facilitate the rapid detection of the power cable.)

SS-ELM和US-ELM的程序代码，可以运行(SS-ELM and US-ELM program code, you can run)

说明：  功率谱分析的MATLAB实例，经典谱估计的几种方法介绍(Power spectral analysis of the MATLAB examples, classical spectral estimation of several ways to introduce)