channel_estimation

Script for computing the SNR improvement in Rayleigh fading channel with selection diversity

OFDM系统中限幅降低峰值与平均功率比的matlab实现，可以直接运行，会有点慢(OFDM system, limiting the peak to average power ratio reduction of the matlab implementation, can run a bit slow)

说明：  几种通信信号的调制识别matlab程序，希望对研究者有帮助(Modulation Recognition of Communication Signals of several matlab program, the researchers hope to help)

Motion Estimation algorithm - Exhaustive search

利用了matlab对相场法算枝晶，可以看到图像(Matlab using the phase-field method for the calculation of dendrites, you can see the image)

matlab code for ECG simulation using MATLAB

Airy光在福利叶空间下的强度和相位掩模版实现，只提供主函数(mask for Airy beam/function in Fourier space，main function)

流形学习算法LTSA的线性化方法，在基因分类聚类中得到了应用，可以将新样本线性地投射到低维空间。(LTSA manifold learning algorithm of the linearization method, clustering in gene classification has been applied to new samples can be projected onto the linear and low-dimensional space.)

无线传感器网络中应用leach算法来识别恶意节点和剔除恶意节点。从而保证网络系统的寿命最长。(In wireless sensor network，cluster algorithm of nodes is all effective approach and key technology to implement energy saving and flexible management．To improve security and lifetime of clustering network，a secure clustering was pro— posed based on the random and parallel cluster header election algorithm and pre—distributed key scheme．In hypothetical network model，it can elect the cluster header nodes and identify and get rid of malicious nodes，and in data telecommuni— cations，the communication security Can be achieved by using encryption algorithm and thus the network lifetime Call be prolonged．)

说明：  用fft进行特征提取，并画出相应的图。再进行神经网络分类(FFT is used to extract features and draw corresponding graphs.)