pca_w

说明：  ldpc码在cdma中应用，matlab实现(cdma ldpc code in the application and realization of Matlab)

以2DPSK为例仿真说明数字频带传输的整个过程。(Description 2DPSK simulation as an example to figure the whole process of transmission band.)

这个我整理完成的100个matlab小程序，希望大家喜欢。(this sorted out the small 100 Matlab procedures, hope you like them.)

SIFT (scale invariant feature transform)

lear N = 10^5 EB_NO = [-1:30] liu1 = zeros(1,N) liu2 = zeros(1,N) for ii = 1:length(EB_NO) m= (2*(rand(1,N)>0.5)-1) + j*(2*(rand(1,N)>0.5)-1) s = (1/sqrt(2))*m normalization of energy to 1 n = 1/sqrt(2)*[randn(1,N) + j*randn(1,N)]

此为三相正弦波PWM逆变器电路，由IGBT元件构成，可实现三相逆变仿真。(PWM inverter)

说明：  最优化 LM算法, 实现二次函数为目标函数的非线性优化(L-M Optimization method)

matlab basic can be used any where

说明：  计算弯曲线天线的频率特性，画出驻波比图（可通过更改天线几何参数计算需要的特性）(Calculation of bending wire antenna frequency characteristics, draw standing-wave ratio map (available by changing the antenna geometry parameters need characteristics))

粒子群算法优化多峰函数，对初学者而言是很有帮助的一个东东，希望大家能够喜欢(Particle swarm optimization multimodal function, it is helpful for a beginner stuff, hope you will enjoy)