SADMatch_new

DRNNdecouplesystemcontrol ,CMACPID,adaptivePIDg(DRNNdecouplesystemcontrol, CMACPID, adaptivePIDg)

说明：  认知无线电中频谱感知技术的AM信号能量检测技术和周期平稳检测技术(Spectrum sensing in cognitive radio technologies AM signal energy detection and cyclostationary detection)

果蝇优化算法matlab程序，适应度函数请下载AdaptFunc.m。应用环境LSSVMlabv1_8_R2009b_R2011a。(Fruit flies matlab optimization algorithm. fitness function, please download AdaptFunc. M.)

接收端采用的算法和程序流程与发送端发送的OFDM符号的帧结构有关系。具体的帧结构，以及定时估计，频偏估计，剩余误差跟踪的算法可参考算法说明文档。这里对程序的流程进行说明。 首先根据短训练字的特性进行相关运算，进行信号到达检测，当检测到相关值大于门限一定次数后，认为有信号到达。然后根据长训练字的特性，进行相关运算，进行OFDM符号FFT窗口起始位置的估计。估计出FFT窗口的位置后，先在时域进行小频偏的估计，将两个长训练字进行小频偏补偿后，进行FFT运算，根据FFT运算的结果进行整数倍频偏的估计。这些参数估计完成后，就可以进行数据解调了。先对数据部分进行完整的频偏补偿，然后根据估计的FFT窗口位置进行FFT运算得到频域的数据，进行解调。然后在对应于导频的子载波位置上提取出导频信息，根据导频信息估计出剩余定时误差以及剩余的信道响应误差，将误差量送入环路进行跟踪。当收到所有数据后，重新回到信号到达检测状态，进行下一次信号到达的检测和信号接收。 (The receiving end uses the algorithm and the program flow and the frame structure of the OFDM symbol transmitted by the sending end. Specific frame structure, and timing estimation, frequency offset estimation, residual error tracking algorithm can refer to the documentation. Here to illustrate the process of the program. First, according to the characteristics of the short training word correlation operation, the signal reaches the detection, when the correlation value is greater than the threshold of a certain number of times, that there is a signal to reach. Then, according to the characteristics of the long training word, the correlation operation is carried out, and the initial position of the OFDM symbol FFT is estimated. The estimated position of the FFT window, first in the time domain for small frequency offset estimation, two long training word for small frequency offset compensation, the FFT operation. According to the result of FFT for integer frequency bias estimation. Af)

采用matlab实现对无线网络中，AODV协议栈的仿真 。采用随机动态建图的过程，生动的解释了协议原理( 51/5000 Using matlab to achieve on the wireless network, AODV protocol stack simulation . Using the process of random dynamic mapping, the principle of protocol is explained vividly)

用matlab实现视频压缩,实现读入，转换格式，量化(image processing based on matlab)

使用matlab实现ami编码,通信原理实验之一,步骤有解释说明(achieve ami use Matlab coding, communication principle experiment, step-by-step explanation)

说明：  这是个ppt，里面有关于各种图片的格式转换语句的详细说明matlab(This is a ppt, there are a variety of images on a detailed description of format conversion matlab statement)

一种用于非线性降维的流形学习算法，主要是先考虑用每一点处的局部切空间表示该点处的几何特征，然后都局部切空间进行排列(A manifold learning algorithm for nonlinear dimension reduction, mainly consider to use every bit of the local tangent space representation of geometric feature at that point, then the local tangent space alignment )

平衡反应器，用来分析在不同的时间尺度内的化学反应进行程度和气体生成(the conp code is used to analysis the degree of chemical reactions and the productions.)