spread-spectrum

从混有呼吸噪音的信号中，提取呼吸信号，完成去除呼吸信号的功能(Mixed with noise from the respiratory signal, respiratory signal extraction, complete removal of the function of respiratory signal)

advanced theory of electrical machines dynamic model of induction machine

提出了一种求解电磁场有限元 边界元混合法所生成的线性方程组的有效方法 ———内观 法结合多波前法.由于该线性方程组的系数是一个部分稀疏部分满填充的矩阵,为了加速求解,应用内观法将系数矩阵分为 2块,一块是有限元法形成的稀疏矩阵,另一块是边界元法生成的满阵,然后用多波前法求解稀疏矩阵方程,用高斯 约当消去法解满阵方程. 采用该方法,计算了二维多层介质柱体的雷达散射截面.计算结果表明,该方法的计算效率远远高于传统的高斯法.(Proposed for solving mixed finite element boundary element linear equations generated by an effective method of Vipassana--- a combination of multi wave front method. Since the coefficients of linear equations is a part of the sparsely populated part of the full matrix, in order to speed up the solution, application of Vipassana coefficient matrix is ​ ​ divided into two, one is the finite element method for the formation of the sparse matrix, the other is the boundary element method generates the full array, and then use the multifrontal method for solving sparse matrix equation Gauss Jordan elimination method with full matrix equation solution. use this method to calculate the two-dimensional multi-layer dielectric cylinder of the radar cross section. The results show the computational efficiency of this method is much higher than the traditional Gaussian law.)

说明：  基于能量差分的ofdm帧同步算法matlab程序，可以运行(OFDM frame synchronization based on energy difference of the received preamble，can run)

This is the LDPC code for Log domain

single channel EMG analysing

B样条的插补编程代码，通过使用MATLAB，来产生B样条曲线图形(B-spline interpolation programming code, using MATLAB, to generate B-spline curve graphic)

利用灰色模型实现灰色预测，这可以用比较少的数据就能实现预测(Gray model gray prediction, which can use less data will be able to achieve the forecast)

用MATLAB模拟环形腔的传输特性，包括损耗，折射率以及半径对传输特性的影响。(double ring transmission based on MATLAB)

说明：  数学建模 Matlab源程序 (Matlab source of mathematical modeling)