中文说明： 结合PCA的尺度不变特征变换(SIFT)算法，Pisarenko谐波分解算法,雅克比迭代求解线性方程组课设,旋转机械二维全息谱计算的实用例程，matlab实现了五类灰色关联度模型的计算,插值与拟合的matlab实现。
English Description：
Combined with PCA scale invariant feature transform (SIFT) algorithm, Pisarenko harmonic decomposition algorithm, Jacobi iterative solution of linear equations course design, practical routine of two-dimensional holographic spectrum calculation of rotating machinery, MATLAB realizes the calculation of five kinds of gray correlation degree model, interpolation and fitting of MATLAB.