mhmm_em_demo

基于prony分解算法，实现对曲线的高精度拟合，简单易懂(Prony based decomposition algorithm, to achieve high accuracy of curve fitting, easy to understand)

说明：  MATLAB编程学习，英文全本，共12章，好资料(MATLAB programming to learn English the whole of this, a total of 12 chapters, and good information)

基于matlab 的层次分析法程序代码，用于方案选择(Based on the analytic hierarchy process in matlab code for program selection)

说明：  计算矩阵各点之间的距离，并选取合适的点，适用于大型矩阵的计算(Calculate the distance between the points of the matrix)

this folder contains matlab codes for minimize sphere with pso algorithm.

MFCC参数提取的所有程序，已接近人耳听觉的特点在语音识别领域得到广泛应用(MFCC parameter getting)

基于人工神经网络的常用数字信号调制识别，给出识别率(ann modulation recognition)

This file is about the working of modified sub oscillation method of generating PWM.

使用mantlab，计算图像的一阶熵和二阶熵(computer the first-order entropy and the second-order entropy)

新型改进光双二进制传输的编解码方案 提出了改进型光双二进制信号在高速率(≥10Gbit／s)传输时预编码的一种新方案。通过分析编解码过 程，证明该信号传输时不易受码间干扰影响，能用二进制强度调制一直接检测的系统接收信号。仿真产生了该信 号的2种码型。结果表明，采用色散补偿技术能使MD NRZ和MD．RZ信号在长距离传输后克服眼图失真，MD-RZ 信号比MD．NRZ信号在传输后有更低的误码率。(Abstract：Anovel pre-coding schemeformodified optical duobinary signalswasproposed．It couldbe applied to缸ansmit high speed data mte signals(≥ 10Gbit／s)．Through analyzing the process of coding and decoding，It Was demonstrated thatmodified opticalduobinary sign alshave capabilityin reductionofpulse—to-pulseinteraction ， and couldbe di． recaymeasured through aconventionalbinaryintensitymodulationdirectdetection(IM—DD)receiver．Twomodified optical duobinary sign als’formats were simulated to generate．Sim ulation results show that MD．NRZ and MD-RZ signals’ formats Can avoid the eye diagrams’distortion for long—distance transmission，if the dispersion Can be compe nsated in each amplifier span．Moreover,theMD-RZ signalhaslowerBER than theIVID-NRZ signal afterlong-distance comm．unication．)