nonlinear-alignment-method

介绍了一种基于VB 后台调用ANSYS和MATLAB进行设计计算的方法。通过借助VB设计的参数化输入界面， 调用APDL编写的模型分析程序和MATLAB编写的可靠性计算程序，实现了在用户界面上以可视化的形式显示计算结果功 能，并应用于铁路接触网设计的可靠性计算中，结果显示证明了计算软件的可行性和实用性。(Describes the background of a call based on ANSYS and MATLAB VB design calculation. VB by using the design parameters of input interface, called APDL model prepared by the procedures and the reliability of computer program written in MATLAB, implementation in the user interface to visualize the results in the form of display features, and design used in railway catenary the reliability of the calculation, the results proved the feasibility and practicality of computing software.)

说明：  求解分块五对角方程组的Matlab编程,并且给出了求解误差的子函数，本编程实用性强(solution for Block pentadiagonal equations)

非线性方程组求解，里面有很多相关的matlab算法例子。希望对大家有用！(Nonlinear equations, there are many examples of related matlab algorithm. Hope it useful!)

地震数据时频分析与分频处理，需要的带走吧，很不错的(Time-frequency analysis and seismic data processing division, need take it away, it is good)

依次输入exchange swap tianchongJ即可，若想修改全排列矩阵的大小，可在MATLAB中打开tianchongJ修改J和N。 (Enter exchange swap tianchongJ in turn can, If you want to modify the full array matrix size can be modified in MATLAB to open tianchongJ J and N.)

说明：  层空时码有三种普遍的检测算法：最大似然（Maximum Likelihood ,ML）检测算法、迫零（zero forcing ,ZF）检测算法、最小均方误差（Minimum Mean Squared Error,MMSE）检测算法。(There are three layers in general space-time code detection algorithms: maximum likelihood (Maximum Likelihood, ML) detection algorithm, forcing zero (zero forcing, ZF) detection algorithm, minimum mean square error (Minimum Mean Squared Error, MMSE) detection algorithm.)

LDPC code construction

In this paper we present the usefulness of the algorithm DCT (Discrete cosine Transform) blocks applied level image compression JPEG (Joint Photographic Experts Goup). It has been shown that this algorithm is the most efficient in the case of compression because it has very good properties for compaction energy related values. As a basic principle we eliminate high frequencies and keep the low and medium without visibly affecting image. DCT in JPEG compression algorithm is encountered in practical applications such as face detection, skin color, facial recognition, iris, fingerprints

PLOT PD VERSUS PFA DETECTIN THEORY ROC RECEIVER OPERATING CARACTERISTICS

一个bp的逼近算法(an approximation algorithm bp)