viterbi_hard

子载波数128位数/ 符号 2符号数/ 载波 1000训练符号数 0循环前缀长度8 调制方式 4-QAM多径信道数3 IFFT Size128 信道最大时延 2(ofdm program 4QAM modulation. Subcarriers median number of 128 /2 Symbol Symbol/carrier cyclic prefix length of the number of training symbols of 1000 0 8 modulation mode 4-QAM multi-path channel number 3 the IFFT Size 128 channel maximum delay)

本教程提供了使用MATLAB的实践性指导，它基于MATLAB6.0版，内容由浅入深，特别是本书对每一条命令的使用格式都作了详细而又简单明了的说明，并配备了例题加以说明其用法，因此，对于初学者自学是很有帮助的；同时，又对数学中的一些深入问题如数值分析、稀疏矩阵、优化理论以及模糊数学等问题进行了较为详细的论述，因此，该书也可作为科技工作者的科学计算工具书。(This tutorial provides a practical guide for using MATLAB, which is based on MATLAB6.0 version of the content of Deep and, in particular the book using the format of each command are detailed but simple instructions, and be equipped with examples on its usage, therefore, is useful for beginners learning the same time, some of the depth of mathematical problems such as numerical analysis, sparse matrix, optimization theory and fuzzy mathematics and other issues discussed in detail, therefore, the Books can also be calculated as the scientific and technological workers, tool.)

这一段源代码为瑞利衰落信道的实现，代码比较简单，适合初学者学习(This section of the source code for the realization of Rayleigh fading channel, the code is relatively simple, suitable for beginners to learn)

OFDM signal generation using MATLAB. Input to the function are Alphabet size, cyclic prefix length, and number of active subcarriers and total subcarriers

pso optimization function

使用遗传算法解决多变量函数优化问题,其中有20个变量(Genetic algorithm is used to solve the multivariable function optimization problem, which has 20 variables)

MATLAB function to calculate combination

MATLAB图形图像分割技术经典教程MATLAB Tutorial classic graphic image segmentation(MATLAB graphic image segmentation classic tutorial MATLAB Tutorial classic graphic image segmentation)

2PSK调制与解调matlab仿真，包括高斯信道awgn，误码率分析(2PSK modulation and demodulation matlab simulation, including the Gaussian channel awgn, bit error rate analysis)

说明：  在神经网络中用求协方差矩阵的方法对人脸图像进行压缩及恢复(In the neural network covariance matrix using the method of face image compression and restoration)