chongji

Ritz法解决-u +u=x 0<x<1，u(0)=0,u(1)=0的有限元边值问题。精确解为u(x)=1/(exp(1)-1/exp(1))*exp(-x)+1/(1/exp(1)-exp(1))*exp(x)+x，基函数为g(i)=sin(i*pi*x)(This matlab code is used to solve the boundary value problem of the differential equation: -u +u=x 0<x<1，u(0)=0,u(1)=0, where the accurate solution is : u(x)=1/(exp(1)-1/exp(1))*exp(-x)+1/(1/exp(1)-exp(1))*exp(x)+x)

采用改进的直接法在matlab中进行功率谱密度计算(Calculating the direct method using the improved power spectrum density in matlab)

MATLAB 实现RLS算法，已在MATLAB中运行过(MATLAB realization of RLS algorithm, has been running in the MATLAB)

qc—ldpc编码的matlab源码，分为好几个版本，small文件夹里的支持小的稀疏矩阵，large文件夹里的支持较大的稀疏矩阵。test文件为顶层(qc-ldpc the matlab source code is divided into several versions, small folder in the support of a small sparse matrix, large folder in the support of a larger sparse matrix. test document for the top-level)

一维波动方程计算的程序，有限差分法,很有用的程序(Program of one-dimensional wave equation, finite difference method fdtd)

matlab编写的信号处理工具箱，很多程度，对于信号处理的很有用(matlab program for signal processing)

该程序实现2ask的解调，2ask解调C语言实现(The program 2ask demodulation, 2ask demodulation C language)

本例是使用kalman filter作为状态观测器，对直流无刷电机的状态进行观测。从结果可以看出，对状态估计的效果非常的好(This example is the use of kalman filter as an observer state, the state of brushless DC motors were observed. As can be seen the results of state estimation of the effect is very good)

third development test

着重于matlab软件的基础学习及应用，适用于初学者，可以让你快速了解该软件并学会基本的应用(Matlab software focused on the basis of learning and application, suitable for beginners, allows you to quickly understand and learn the basic application software)