speech1

等距扇束CT重建，利用matlab自带pantom进行正向投影和逆向滤波反投影重建，恢复图像(CT fanbeam FDK reconstruction)

Scale invariance in Template matching

This m files and Gui files are for solve the problem about Find specific position in 3D space. by using 3d circles you can axis in 3d spaces except one situation explaned as not selected axis x,y,z if you want to know more about seek the position in 3D spaces than depress the zip file and operate m file named Robot_report1 and Robot_report1.fig

实际光源不是绝对的单色，包含一定的光谱宽度△λ。△λ范围内的每一种波长的光都生成各自一组干涉条纹，除零干涉级外，相互间均有位移，使条纹对比度下降。(The actual light source is not absolutely monochromatic, contain a certain spectral width △ λ. Each wavelength of light within the range △ λ generates a set of interference fringes each, in addition to the zero level outside interference, mutual displacement are so fringe contrast decreases.)

empirical mode decomposition process hilbert huang transform - Matlab.

共轭梯度法在数值分析中应用非常广泛，比最速下降法要快，这里是FR共轭梯度法，及简单的例子。(Conjugate gradient method in numerical analysis is widely used, and faster than the steepest descent method , this is FR conjugate gradient method, and some simple examples.)

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.)

调用factoran函数根据相关系数矩阵作因子分析(Factor analysis based on correlation coefficient matrix by calling factoran function)

log-gabor用于年龄变化的人脸重构，效果很好(log-gabor)

经典书籍《通信系统仿真原理与无线应用》配套源代码，用MATLAB编写的(classic books "communications system simulation and wireless applications principle of" complementary source code, prepared by using MATLAB)