PQ_wave_analsys

求解转子系统前三个临界转速和主振型的传递矩阵法 (Calculation of critical speed)

abaqus蠕变子程序,user中的实例(creep subroutine for abaqus user)

这是最小二乘法多项式拟合的算法 很有参考价值的程序,(This is the least squares polynomial fitting algorithm is very useful procedure,)

说明：  用fortran 70实现数值积分，并实例计算了三个函数，导出了积分值和误差(The numerical integration is realized by FORTRAN 70, and three functions are calculated with examples. The integral values and errors are derived.)

说明：  基于欧拉距离的KNN分类器，可自行调节map和预测点的位置。运行时首先显示分布散点图，之后输出预测值(Here is a KNN classifier based on Euler distance with self-adjusting map and prediction point positions. The distribution scatter will plot displayed map at first, then show the predicted value.)

说明：  此程序为满足条码不能带IOQ三位字母的计算方法(Bar code can not be three letters with the calculation of IOQ)

高频地波雷达回波信号二维傅里叶变换仿真处理，通过该变换可以得到海上目标的速度和距离信息。(HF ground wave radar echo simulation of two-dimensional Fourier transform processing, the adoption of the sea can transform the speed and distance from goal information.)

说明：  特征值分解，HouseHolder分解等(matlab Linear Algebra Package)

给出一个计算声子晶体结构的一维传递矩阵法。(Give a one-dimensional crystal structure of the phonon transfer matrix method.)

说明：  谐波傅里叶分解，旨在把复杂多变的曲线方程分解成各次规律的正弦波(Harmonic Fourier Decomposition)