adapt

地震学绘制震源机制小程序,只要输入震源机制参数就能方便地用MATLAB绘制震源机制球(Program of focal mechanism )

this is a very interesting paper, ple read it A paper related with MIMI, I will upload source code lalter

具体实现三维图像的仿射变换，比较适用于matlab的初学者的。(Concrete realization of three-dimensional image of the affine transformation to compare the application of the beginners in matlab.)

主成分分析(PCA)是一个数学的过程,它使用一个正交变换转换成一组观测到的可能相关的因素形成一套价值观的独立变量称为主成分。主成分的数量小于或等于原始变量的数目 (Principal component analysis (PCA) is a mathematical procedure that uses an orthogonal transformation to convert a set of observations of possibly correlated variables into a set of values of uncorrelated variables called principal components. The number of principal components is less than or equal to the number of original variables)

说明：  一个动画模拟的粒子寻找最小值的一个简单程序，有助于学习粒子群法(an animated simulation of particles searching for the minima of a simple function，which helps you learn PSO. )

基于stbc编码的ofdm结合mimo信道传输系统仿真(Combination of coded ofdm based stbc mimo channel Transmission System Simulation)

指纹识别源代码。思路完全是按照文件夹中网页里介绍的方法，即提取指纹中的分叉点和端点的位置作为指纹的特征值。由于今天太忙，对图像的预处理作的很失败，程序会提取出很多伪点，而指纹轮廓也没有想出办法过滤。汗，你看看能不能参考把。 三个m文件，fd.m提取指纹中的分叉点，fd2.m提取指纹中的端点，Cpoint.m则是前两个文件运行中需要调用的掩模函数。(fingerprint identification code. Thinking is entirely in accordance with the folder on the website Lane, that the fingerprints of the bifurcation point and endpoint position as a fingerprint eigenvalues. As today are too busy, the image preprocessing for the failure, the program will extract a lot of pseudo-point, and the fingerprint profile nor find a way to filter. Khan, you can look at the information put. 3 m documents, fingerprints fd.m the bifurcation point, fd2.m fingerprints of endpoint, Cpoint.m are two documents before the operation need to call the mask function.)

gives the initial and final velocities of a trajectory connecting R0 to Rf over a transfer time of dT. This method uses universal variables, from Vallado.

qdpsk调制主要是帮助那些需要代码的朋友们，这些代码仅作参考，如有疑问请留言！！！谢谢(qdpsk modulation is mainly to help friends who need the code, the code is only for reference, if any questions please leave a message! ! ! Thank you)

说明：  正弦信号，单个频率的正弦信号，频率为1KHz，幅度为5(Sinusoidal signal, a single frequency sinusoidal signal, a frequency of 1KHz, the range of 5)