MANGYUAN

加入载波相位偏差，用最大似然估计和错误估计估计相位误差，并进行比较。(Add carrier phase deviation, using maximum likelihood estimation and errors estimated phase error is estimated and compared.)

说明：  matlab初始化源代码，用于进行函数的优化(initialize matlab source code, used for the optimization function)

用希尔伯特黄变换（HHT）求时频谱和边际谱.包括代码、原理、截图分析(Hilbert Huang transform (HHT) Find the spectrum and marginal spectrum, including the code, schematic, screenshot analysis)

全面介绍了simulink软件包中动态系统建模、仿真、分析和调试的方法，包括连续系统、离散系统和混合系统。(A comprehensive introduction to simulink package dynamic system modeling, simulation, analysis and debugging methods, including continuous systems, discrete and hybrid systems.)

KNN, K最邻近算法 交叉验证，选出KNN算法中较优的K值(KNN：K nearest neighbours cross validation, for the choice of the best K in KNN algorithm)

说明：  PMSM起动仿真模型，双闭环控制，仅供参考。能够无位置传感器起动(PMSM Start Simulation Model)

susan编写的关于fdtd算法的书中的2D部分的程序(susan book written fdtd 2D program)

mppt for photovoltaic systme

实现了PCM编码->基带码型转换（NRZ to HDB3）->QPSK调制->高斯信道->QPSK解调->基带码型反转换（HDB3 to NRZ）->PCM解码。同时给出了误码率曲线。(Achieve a PCM coding-> Baseband code converter (NRZ to HDB3)-> QPSK Modulation-> Gaussian channel-> QPSK demodulator-> anti-baseband conversion pattern (HDB3 to NRZ)-> PCM decoding. Also shows the BER curves.)

This program give examples on how to sample from normal distribution