vibra_shiyuchuli

傅里叶变换后频谱图 B：陷波函数作用后的频谱图 C：经逆变换的滤波后图像，效果不是很理想 Ifft2：为验证自己的快速傅里叶变换程序的正确性，用matlab自带逆变换程序将频谱逆变换后图形，与原图相符，说明快速傅里叶变换程序正确。(This is a FFT )

Digital modulation over fading channel

说明：   由于使用了大量数目的子载波，这就使得多载波系统对多种同步误差都很敏 感。同步误差可分为两大类:载波相位 (due to the use of the large number of subcarriers, which makes multi-carrier systems for a variety of synchronization errors are very sensitive. Synchronization error can be divided into two categories : carrier phase)

embedding and extraction by DCT

EOF（经验正交函数分解）可以进行时空分离，同时也可以分析周期规律(EOF (empirical orthogonal function decomposition) can be temporal separation, but also can analyze cycle regularity)

最新关于故障诊断的论文，有LMD算法，还有EMD算法，主要是做轴承磨损预测的(failed to translatefailed to translatefailed to translatefailed to translate)

传统的决策树能较好地解决分类问题，但当类的个数增多时，所产生的单一决策树就会变得复杂，同时概括能力降低。 该文采用基于层次分解的方法通过产生多层决策树来处理多类问题。 与传统的单一决策树比较， 基于层次分解的决策树在处理多类问题时有许多的优势。(induction learning,decision tree,id3 ,hiberarchy decomposition)

用MATLAB仿真工具实现Floyd算法，求任意两端间的最短路径(MATLAB simulation tool used to achieve Floyd algorithm, for any shortest path between two ends)

基于分数低阶协方差仿真的时延估计问题，其基本思想是利用两个接收信号的相关函数来估计时间延迟。(Based on the scores of low-level simulation of time delay covariance estimation problem, the basic idea is to use of the two received signal correlation function to estimate the time delay.)

这是一个K中心点聚类算法C实现的,希望对大家有用(K this is a clustering algorithm C to achieve a focal point, and I hope useful for everyone)