Gravitational-Search-algorithm

matlab code for image registration

convolution algorithm compression

DividePlane：用割平面法求解整数规划 (DividePlane: by cutting plane method for solving integer programming)

matlab simulation program for ASK

说明：  bp训练PID系数，《先进pid及MATLAB仿真》修改实现(bp training PID coefficients, pid advanced and MATLAB simulation, modified to achieve)

Crout s algorithm is used when the inversion of large matrices, say 1000X1000 is difficult. So Crout s algorithm uses LU decomposition method to get the same results as the inversion of Matrix.

均匀布拉格光栅的仿真程序，使用龙格库它法编写的源代码。(Uniform Bragg grating of the simulation program, the use of Runge law prepared by the Treasury of its source code.)

Construct the short length of QC LDPC codes without girth 4 and girth 6(The Program to construct the short length of QC LDPC codes without girth 4 and girth 6 Copyright (C) Yang XIAO, Jun FAN, BJTU, July 26, 2007, E-Mail: yxiao@bjtu.edu.cn. This program presents an approach [1] for constructing the short length of LDPC codes with girth 8. First, we design 3 submatrices with different shifting functions given by our schemes, then combine them into a matrix according to our approach, finally, expand the matrix into a desired parity-check matrix using identity matrices and cyclic shift matrices of the identity matrices. The simulation results in AWGN channels show that the codes which can be obtained by the generator matrix derived from this check matrix for encoding the random information bits are as good as random LDPC codes [1]. Ref: [1] J. Fan, Y. Xiao, “A design of LDPC codes with large girth based on the sub-matrix shifting”, IET International Conference on Wireless Mobile and Multimedia Networks Proceedings (ICWMMN 2006), (CP525), p. )

说明：  准椭圆函数交叉耦合滤波器耦合系数的提取程序。利用matlab遗传算法和solvopt算法工具包。不懂使用方法可以加我qq13319810(Cross-coupled quasi-elliptic function filter coupling coefficient of extraction procedures. The use of genetic algorithms and matlab toolkit solvopt algorithm)

该算法是lte中信道编码（turbo）的仿真源代码(The algorithm for channel coding is lte (turbo) of the simulation source code)