GMM_dynamics_position_orientation

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。(First, according to the characteristics of the short training word correlation operation, the signal reaching the detector, when the detected correlation value is greater than the threshold after a certain number of times that a signal arrives. And then the characteristics of long training word, the correlation operation for the FFT window starting position of an OFDM symbol estimate. The estimated position of the FFT window, the first small frequency offset in the time domain estimation, the two long training word small frequency offset compensation, the FFT operation, the FFT result of the operation for integer frequency offset estimate. These parameter estimation is completed, the data can be demodulated on. The first portion of the data for a complete frequency offset compensation, and based on the estimated FFT window position of the FFT operation to obtain frequency domain data, demodulated. Then corresponding to the position of the pilot subcarriers are extracted on pilot inform)

说明：  同时正交分解，也是对MP的改进，实现信号的稀疏分解(At the same time orthogonal decomposition, also MP for improvement, and the signal is sparse decomposition)

说明：  数学建模万能模板 数学竞赛 有用建议下载(Mathematics Mathematical Modeling universal template useful for)

说明：  采用白噪声作为输入，最小二乘算法，并用于求解丢潘图方程(Using white noise as input, least squares algorithm, and graph equations for solving lost Pan)

EM算法估计GMM的matlab版本的源代码，适合给类机器学习问题(EM algorithm estimates GMM Matlab version of the source code, suitable for the type of machine learning problems)

ppt文件，是matlab的一些基础知识，很有用(ppt files, are some of the basics of matlab, useful)

近红外光谱平滑去噪算法，由于光谱仪得到的光谱信号中既有有用的信息，同时也叠加着随机误差，即噪声，而这种方法能取到很好的去噪作用。(Nir denoising smoothing algorithm, as a result of the spectrometer for spectrum signal in both the useful information, and superposition of the random error, the noise, and this method can get very good denoising effect. )

simlink的开发和框图还有s文件通过它可跟好的了解simlink的使用(Block Diagram of the development and simlink)

:元胞自动机不仅是理论计算机科学领域的一个重要的计算模型,而且可视为一无限维的离散动力系统,被广泛应用于 自然科学和社会科学各领域的复杂性的研究中,是一个重要的研究方法和工具。该文以Matlab 为开发工具,开发了元胞自 动机的可视模型,为其在各个领域的复杂性研究提供了一个简易、可行的计算机仿真工具(MATLAB s version of Conway s Game of Life. "Life" is a cellular automaton invented by John Conway that involves live and dead cells in a rectangular, two-dimensional universe. In MATLAB, the universe is a sparse matrix that is initially all zero. Whether cells stay alive, die, or nerate new cells depends upon how many of their eight possible neighbors are alive. By using sparse matrices, the calculations required become astonishingly simple. We use periodic (torus) boundary conditions at the edges of the universe. Pressing the "Start" button automatically seeds this universe with several small random communities. Some will succeed and some will fail. )

说明：  用来计算固有模态函数（IMF）瞬时频率及振幅包络的代码(The function FA computes a frequency and amplitude of data(n,k), where n specifies the length of time series, and k is the number of IMFs. )