test4

matlab实现Allen方差计算程序，主要用于Gyro等传感器的数据预处理与传感器精度验证(matlab realize Allen variance calculation procedures, mainly used for data pre-processing and sensor accuracy Gyro sensor validation, etc.)

说明：  应用matlab实现对统计分析中的主成分分析方法，高效实现对输入变量的降低维数，同时(Application matlab realize the principal component analysis statistical analysis, efficient implementation of reduced dimensionality of the input variables, while)

利用ODE45求解Lorenz模型，并编写M文件绘制Apollo卫星的运动轨迹(Use ODE45 solve Lorenz model and drawing files written M Apollo satellite trajectory)

hmm hidden markov model nice pretty code good luck!!!

说明：  本程序为改进后的基于matlab实现的准正交空时分组码的仿真算法，可以分析系统性能(This procedure is based on matlab to achieve improved quasi-orthogonal space-time block code simulation algorithms can analyze system performance)

good matlab code for fast implementation of the Multiwall model

改进了BIHT中的观测矩阵，实验结果证明，误差更小了(change the measurement matix,result better)

This model defines the spectrum sensing in cognitive radio applications

MUSIC算法[1]是一种基于矩阵特征空间分解的方法。从几何角度讲，信号处理的观测空间可以分解为信号子空间和噪声子空间，显然这两个空间是正交的。信号子空间由阵列接收到的数据协方差矩阵中与信号对应的特征向量组成，噪声子空间则由协方差矩阵中所有最小特征值（噪声方差）对应的特征向量组成。(MUSIC algorithm [1] is a feature space based on matrix decomposition method. From the geometric point of view, the signal processing can be decomposed observation space the signal subspace and the noise subspace, it is clear that the two spaces are orthogonal. Signal Subspace data received by the array covariance matrix and eigenvectors corresponding to the signal component, the noise subspace from the covariance matrix of all the smallest eigenvalue (noise variance) eigenvector components.)

二值化算法的经典算法：大津法Matlab源码，有较高的参考价值(Classical binarization algorithm algorithms: Otsu Matlab source code, have a high reference value)