qpsk-error

overlap save is very important method for calculation

Digital water marking used in pictures to hide some data

Speech recognition matlab code

two Matlab functions for initializing and training a recurrent neural network (two Matlab functions for initializing and training a recurrent neural network)

matlab程序计算傅里叶变换全息图的相位和振幅，考虑了波长和工作距离等信息。(matlab program to calculate Fourier transform hologram of phase and amplitude, wavelength and consider the working distance and other information.)

testPCA IS a code for pca project in matlab.

说明：  这个基于MATLAB的遗传算法的源程序，希望对有需要的同志提供帮助！(the MATLAB-based genetic algorithm source, and I hope to be in need of help comrades!)

计算超混沌Rossler吸引子的Lyapunov指数(calculated hyperchaotic Rossler attractor of Lyapunov exponent)

说明：  采用粒子群算法求解可靠性优化问题，程序用MATLAB编写(Using particle swarm optimization algorithm for solving the reliability problems, procedures used to prepare MATLAB)

编写一个含QAM传输的发送和接收模块 1)分别采用复基带仿真和实带通仿真两种形式 a) 实带通仿真时, 载波频率为符号率的4倍 b)发端采用滚降系数0.5的根号升余弦滤波器 2)画出Eb/N0=15dB时的接收波形(收滤波前),取100个采样 3)画出发端输出的眼图和收端过匹配滤波后的眼图(画眼图时不加噪声) 统计误符号率和误比特率与Eb/N0的关系,画出曲线, 与理论计算的曲线相对比 (Prepare to send of one with QAM transmission and receiver module 1), respectively, the complex baseband simulation and the real band-pass simulation in two forms a) the real band-pass simulation, the carrier frequency used for the symbol rate of 4 times b) the originator roll-off factor of 0.5 root raised cosine filter, 2) draw Eb/N0 = 15dB when the received waveform (closing filter), take 100 samples) to draw the originator of the output eye diagram and income side of the eye diagram after the matched filter ( draw the eye diagram without noise) statistics symbol error rate and bit error rate and Eb/N0, draw a curve calculated with the theoretical curve compared)