Task7

说明：  用matlab写的一个关于最大期望算法EM实现(Using matlab to write an EM algorithm on the greatest hope to achieve)

说明：  图像处理应用及相关说明，matlab相关函数的应用及说明(Image processing applications)

Matlab6应用开发指南,介绍matlab6的应用与开发，数值计算与统计，M文件编辑等(Matlab6 Application Development Guide, Introduction matlab6 the application and development of numerical and statistical, M file editing, etc.)

distributed in matlab mfile

说明：  数学建模国赛2016年D题，风电场运行状况分析及优化(Mathematical Modeling National Competition 2016 D Question)

Fourier transform and DFT (Fourier transform)

A speech signal filterbank, using melscale frequency and framebanking.( 1. For speech signal can be represented as a discrete sequence of frames (or feature vectors) that can be used as the input to a speech recogniser. Important ideas and techniques that are used in the assignment are the design of a (Mel frequency scale) audio filterbank, , windowing of a continuous audio signal, spectrum analysis of the signal, filtering as multiplication in the frequency domain, the visual representation of a speech signal as a spectrogram, appreciation of the acoustic variability in real speech utterances. 2. To gain a deeper knowledge of the application of MATLAB programming to audio signal processing. 3. To gain practice in the art of writing a formal report: structure, content, style, use of diagrams, presentation etc. etc. )

输电线路的始端电压和功率的求解，其滞后功率因素为0.8，根据其参数来求解响应的电压和频率(The shifting transmission line voltage and power, the power factor behind for 0.8, according to its parameters to solve the voltage and frequency response)

《MATLAB/Simulink建模与仿真实例精讲》第4章相关例子程序，可以运行。(" MATLAB/Simulink modeling and simulation instance succinctly," Chapter 4 example program, you can run.)

一维最大似然算法（ML），用于进行阵列信号的波达角估计(An implementation of 1D ML algorithm, which is used in the DoA estimation of array signal processing.)