spectral_no

this is a file that about matlab this is a file that about matlab

提取图像中的红色，并且使红色部分变为白色，其余部分变为黑色。(get the red color area from a picture, and turn the red part into white, and the rest into black)

说明：  使用MATLAB软件来生成决策树的系列代码(Matlab routine of decision tree)

基带传输： 欲传送的01比特流 + 码型变换（HDB3码） + 基带成型网络（采用升余弦滚降系统）+ 信道 + 码型反变换 + 01比特流。 (Baseband transmission: To send the 01 bit stream+ code type transformation (HDB3 code)+ base-band forming network (with raised cosine roll-off system)++ code based channel inverse transform+ 01 bit stream.)

Simulation model for solving the load flow problem

小波阈值降噪的matlab代码 里面有两个程序 一个比较了软硬阈值去噪 另外一个对多层小波分解的阈值去噪做了对比(Wavelet threshold denoising matlab code there are two programs a relatively soft and hard thresholding is another multi-layer wavelet threshold denoising to do a comparison)

system identification(ERM)

边界元算法求解正方形导热问题实例。一个简单的二维导热模型，用BEM算法求解，用于学习边界元编程。(Boundary element method for solving square conduction problem instances. A simple two-dimensional heat conduction model, using BEM algorithm for learning boundary element programming.)

基于傅里叶变换的混沌图像置乱加密方法及其代码实现(Fourier transform based on chaotic image encryption and scrambling code implementation)

说明：  一种永磁同步电机simulink模型，仅供学习参考(A Simulink model of permanent magnet synchronous motor)