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OFDM信号瑞利衰落信道的matlab仿真代码，,包括一个word文档和仿真程序。(OFDM signals in Rayleigh fading channel simulation matlab code, including a word document and simulation program.)

扩展卡尔曼滤波的算法程序，里面包含了一阶和二阶的ekf预测M文件，希望对大家有帮助(EKF extended kalman filter matlab filter algorithm,can be used to 1st order Extended Kalman Filter prediction step, 1st order Extended Kalman Filter update step,2nd order Extended Kalman Filter prediction step ,2nd order Extended Kalman Filter update step)

克立格插值工具箱，matlab版，里面有很多程序，有帮助就看看，很不错-Kriging interpolation toolbox, matlab version, which has a lot of procedures, there is help on the look, very good

说明：  matlab代码 适用于鲸鱼寻优算法，初级教程(Matlab code for whale optimization algorithm, primary tutorial)

说明：  在复杂网络研究中，利用e阈值求递归矩阵和邻接矩阵(get recurrence network)

一个OFDM符号128个有效符号，插入128个虚拟子载波 符号率（即有效数据率）fsymbol，而发送速率（需要包括虚拟子载波）2fsymbol 输入的数据需要2倍的发送数据率，以便进行内插，实现位定时跟踪，即4倍fsymbol采样率的调制信号 OFDM symbol Nfft=128 points 一个OFDM符号数据点 Nfft*2 = 256 ， Guard Interval点 ＝Ng*2=64 ( a OFDM symbol 128 effective symbols, insert 128 virtual sub-carrier symbol rate (i.e. valid data rate), and fsymbol sending rate (need to include virtual sub-carrier) 2fsymbol input data need 2 times the sending data rate for interpolation, realize a timing tracking, namely fsymbol sampling rates four times the modulation signal OFDM symbol Nfft = 128 points a OFDM symbol of data points Nfft* 2 = 256, Guard Interval point = Ng* 2 = 64 )

discrete wavelet and svd based watermarking with 12 type of attack included

说明：  使用蚁群算法解决旅行商问题，求路径最短问题(Using ant colony algorithm to solve the traveling salesman problem and find the shortest path)

说明：  频偏校正估频算法的实现，Matlab函数。(Estimated frequency offset correction algorithm, Matlab function.)

摘要 本文提出了一种新的基于极大似然法的椒盐噪声滤波算法。在传统BP 算法中引入 了极大似然估计，在训练样本时能够在考虑网络逼近行为的同时对噪声分布进行估计。而且 针对椒盐噪声模型构造了新的鲁棒误差函数，从而使算法本身的抗干扰性增强。实验结果表 明了该算法与传统BP 算法相比具有更好的滤波性能。(Abstract This paper presents a new maximum likelihood method based on impulse noise filter. In the traditional BP algorithm, the introduction of the maximum likelihood estimation, the training samples can also be considered acts of the network approach to estimate the noise distribution. Salt and pepper noise and model construction for a new robust error function, so that the enhanced anti-jamming algorithm itself. Experimental results show that the algorithm compared with the traditional BP algorithm has better filtering performance.)