lvjing

说明：  求解电荷中性方程的matlaB程序,主要是求解一个数值方程，求解量为费米能级，得到能级后就可以算出电子和空穴的浓度。(Solving the charge neutrality equation matlaB procedures, mainly to solve a numerical equation solving capacity of the Fermi level, by level can be calculated after the electron and hole concentrations.)

基于matlab实现语音信号的采集和处理，包括频谱分析，显示实时A声级(Based on matlab realize the voice signal acquisition and processing, including spectral analysis, display real-time A sound level)

视频加噪攻击 ，是基于matlab的，经过测试，效果很好，(AdditionalNoise)

word文档内是热传导方程的MATLAB程序代码(word document is the thermal conductivity equation in MATLAB code)

ofdm粗频偏估计程序，包含5个模块，基于PN序列的同步(ofdm coarse frequency offset estimation procedures, including the five modules)

Fs = 100000 t = 0:1/Fs:.00296 x = 1-cos(4*pi*t) cos(2*pi*t*200) h = spectrum.welch Instantiate a welch object. psd(h,x, Fs ,Fs) Plot the one-sided PSD

Congnitive radio math wordh

Asynchronous machine model in Park (dq) frame

function Px = music(x,p,M) MUSIC Frequency estimation using the MUSIC algorithm. ----- USAGE Px=music(x,p,M) The input sequence x is assumed to consist of p complex exponentials in white noise. The frequencies of the complex exponentials and the variance of the white noise are estimated using the MUSIC algorithm. x : input sequence p : number of complex exponentials to find M : number of noise eigenvectors to use The frequency estimates are found from the peaks of the pseudospectrum Px.

source code of rayleigh fading environment