Three-spectrum

说明：  6QAM通过带限信道，设码元速率为1000波特，传输信道特性为滚降系数为0.75的滚升余弦频谱的滤波器，试建立测试模型并观察接收信号（等效基带信号）的眼图、星座图和相位转移轨迹图。simulink模型(6QAM through the band-limited channel, located at 1000 baud symbol rate, the transmission channel characteristics for the roll-off factor of 0.75 of spectrum raised cosine filter roll and try to create a test model and observe the received signal (the equivalent baseband signal) of the eye diagram, constellation and phase transfer trajectories. simulink model)

Introduction to Matlab Image Processing include the vector arrays, matrix manupulation, inputs and outputs and plotting in general and 2d and functions & Iterations

该资料是一个matlab仿真程序。实现对噪声中正弦信号相位的估计。利用matlab仿真得到的PDF估计 对不同的信噪比（SNR）情况进行Monte Carlo仿真(This information is a matlab simulation program. Realize sine signal phase noise estimation. Obtained by simulation using matlab PDF estimates different signal to noise ratio (SNR) conducted Monte Carlo simulation.)

使用EM算法，估计32QAM调制方式下的信噪比(EM algorithm using the estimated signal to noise ratio under 32QAM modulation)

求解出在最小均方误差滤波器单位冲激函数h(n)。求解过程需要通过利用循环嵌套的编程思想，比较在逐次增加滤波器阶数的过程中得到的最小均方误差与最初设定的最小均方误差的阈值，当达到要求时，可以进一步确定滤波器的阶数。(how to use this function: [hx,hy]=wiener_ch2(w,N) )

bayes分类器，脱机手写识别，含实验数据(bayes classifier, off-line handwriting recognition, with the experimental data)

说明：  改进遗传算法，克服遗传算法的缺点，有一定的参考价值。(The disadvantage improved genetic algorithm to overcome the genetic algorithm, a certain reference value.)

detail explanation of matlab

lpr and lpd in matlab

本文提供了在不同信噪比条件下衰落信道上多分辨率MQAM同相比特的BER表达式(This article provides different SNR with fading channels compared to multi-resolution characteristics of MQAM BER expression)