jianghai

用MATLAB实现数字音频水印的嵌入和提取，即是在一段音频水印中嵌入二维图像。(Using MATLAB realization of digital audio watermark embedding and extraction, that is, over a period of two-dimensional audio watermark embedded image.)

This m.file is intended to perform the numerical integration of a structural system subjected to an external dynamic excitation. The integration scheme utilized for this analysis is the newmark alpha-beta method.

认知无线电是一种用于提高无线电通信频谱利用率的新的智能技术. 首先简述认知无线电的背景和概念,针 对认知无线电的频谱感知功能,详细地分析基于能量检测的频谱检测方法,在此基础上研究了噪声方差的不确定 性对检测性能的影响. 针对无线信号检测具有本地局域性和能量检测存在信噪比极限的特点,提出一种分布式有 限合作检测机制,推导出基于“OR”规则的有限合作机制的检测概率,并进行Monte Carlo仿真.(Cognitive radio is a radio communications spectrum used to improve the efficiency of the new smart technology. First, the background and outlined the concept of cognitive radio, spectrum sensing for cognitive radio capabilities, a detailed analysis of the spectrum based on energy detection test In this study the noise variance based on the uncertainty of the detection performance. for wireless signal detection with local detection of localized and there is signal to noise ratio limit of the energy characteristics of a distributed cooperative detection mechanism, derived out based on " OR" rules of the detection probability of the limited cooperation mechanism and conduct Monte Carlo simulation.)

OFDM-MIMO收发系统，The simulator GUI is started with command ui_start in Matlab command window.-,matlab,通讯编程/Communication(OFDM-MIMO transceiver system, The simulator, GUI is started with command ui_st art in Matlab command window .-, Matlab, Communication Programming/Communication)

In this paper, we introduce a new machine-learning-based data classification algorithm that is applied to network intrusion detection. The basic task is to classify network activities (in the network log as connection records) as normal or abnormal while minimizing misclassification. Although different classification models have been developed for network intrusion detection, each of them has its strengths and weaknesses, including the most commonly applied Support Vector Machine (SVM) method and the Clustering based on Self-Organized Ant Colony Network (CSOACN). Our new approach combines the SVM method with CSOACNs to take the advantages of both while avoiding their weaknesses. Our algorithm is implemented and evaluated using a standard benchmark KDD99 data set. Experiments show that CSVAC (Combining Support Vectors with Ant Colony) outperforms SVM alone or CSOACN alone in terms of both classification rate and run-time efficiency.

程序实现二维Airy beam的轨迹控制，通过改变wm和wg的值，可控制Airy beam的最大光强在传输轨迹中的任意位置，可观察光束光强的三维分布(Airy beam program implements the two-dimensional locus control by changing the values of wm and wg, controlled Airy beam of the maximum light intensity transmitted anywhere in the track, the light beam can be observed three-dimensional distribution of light intensity)

IT IS MATLAB FILE FOR LOAD FLOW ANALYSIS USING FAST DECOUPLED METHOD IN POWER SYSTEM

WLan-IEEE802.11a modified with MIMO (Multiple transmitter and receiver)

对正弦信号进行FFT变换 画频谱图，进行频谱分析，可以计算出信噪比(Sinusoidal signals of paintings transform FFT spectrum chart, spectrum analysis, signal to noise ratio can be calculated)

Matlab 2012b crack Windows 32-bit