PCA

1. 分别用2,3,4,5阶多项式来逼近[0,3]上的正弦函数sinx，并作出拟合曲线及sinx函数曲线线图。了解多项式的逼近程度和有效拟合区间随多项式的阶数有何变化。(1. Were treated with 2,3,4,5-order polynomial approximation [0,3] The sine function sinx, and make sinx function curve fitting curve and line graphs. Understand the degree of polynomial approximation and the effective range with the polynomial fitting order of any changes.)

This code is NUMBER1: MATLAB code for paper: calculation of electron energies in a quantum well using the transfer matrix method. we solve the time independent schrodinger equation in 1D AlGaAs/GaAs/AlGaAs quantum well using the transfer matrix method. We define a wave function for each point of well and barriers and convert it to a 2in2 matrix. Multiplying of matrixes with boundary conditions results in discrete energies and their wave functions. We compare our results with other simulations and calculate discrete energies for different wells.

Quadratic Assignment Problem

进行的梯型变换，解决距离徙动校正，多普勒方向，和快时间方向。(The ladder to transform, solve the range migration correction, Doppler direction, and fast-time direction.)

BINARY PHASE SHIFT KEYING

一些CDMA的资料，很全面，各种论文，都是再市面上找不到的现在提供给平台，可以增加平台的量(Some CDMA data are very comprehensive, and all kinds of papers are not available on the market. Now it is available to the platform, which can increase the volume of the platform.)

DS_CDMA的Matlab仿真有问题联系799791616.(DS_CDMA the Matlab simulation.)

说明：  求反求参数（无约束非线性优化方法）的matlab实现 无约束非线性优化算法-Powell法优化子程序 matlab广义最小二乘算法程序(Reverse order parameter (unconstrained nonlinear optimization method) to achieve the matlab unconstrained nonlinear optimization algorithm-Powell method to optimize the generalized least-squares algorithm matlab subroutine procedure)

智能控制及其matlab实现，包括神经网络控制、模糊逻辑控制、预测控制的matlab实现。(Intelligent Control of matlab realize, including neural network control, fuzzy logic control, predictive control matlab.)

二维码操作程序示例二维码操作程序示例二维码操作程序示例二维码操作程序示例(Two-dimensional example of a program of two-dimensional code code example of a program of two-dimensional example of a program of two-dimensional code code example of a program)