matlab_shipin

matlab code for FDTD analysis in 3 dimension

说明：  1、随机生成一个5*5矩阵A，元素符合均匀分布；再随机生成一个5*5矩阵B，元素符合正态分布。对A和B进行加、减、乘、除、比较等矩阵运算，查看运算结果。 2、创建5阶魔术矩阵，求A的行列式、特征值、逆、秩、迹、条件数。 3、假设矩阵 ，求A的LU分解、正交分解、特征值分解、奇异值分解。 4、创建6阶单位稀疏矩阵，并显示其全部元素。 (1, randomly generated a 5* 5 matrix A, elements in line with uniform distribution then randomly generated a 5* 5 matrix B, elements in line with normal distribution. Pairs of A and B to add, subtract, multiply, divide, comparison matrix operations, view the results of operations. 2, create a 5-order magic matrix, find A, determinant, eigenvalues, inverse, rank, trace, the condition number. 3, assuming that matrix, find A, LU decomposition, orthogonal decomposition, eigenvalue decomposition, singular value decomposition. 4, create a six-order unit of sparse matrix, and display all of its elements.)

这个程序是用来寻找每个图像的K近邻的，然后得到了一个权值矩阵(This program is used to find K-nearest neighbor of each image, and then get a weight matrix)

fdtd-finite difference time domain method

线性调频信号的仿真。很好的东东赶紧下载。仿真效果很好的(chirp_sig simulation)

.M黨共5個~~ 都是GUI設計界面之設計~~ 音訊檔處理之介面~~ (. M ~ ~ Party of 5 is GUI design interface design audio files ~ ~ ~ ~ processing interface)

张正友标定matlab的m文件，包含测试文件(Zhang Zhengyou calibration matlab m file that contains the test file)

illustration on OFDM

QPSK在瑞利信道下的仿真误码率，用于处理信号使用QPSK载波时候的信息计算(QPSK simulation in Rayleigh fading channel)

matlab中随机数命令，以及用法，例子等，可以用来快速查询可是命令(Command, matlab random number and usage, examples, can be used to quickly query but command)