guangfubingwangxitong

This LDPC software is intended as an introduction to LDPC codes computer based simulation. The pseudo-random irregular low density parity check matrix is based on Radford M. Neal’s programs collection, which can be found in [1]. While Neal’s collection is well documented, in my opinion, C source codes are still overwhelming, especially if you are not knowledgeable in C language. My software is written for MATLAB, which is more readable than C. You may also want to refer to another MATLAB based LDPC source codes in [2], which has different flavor of code-writing style (in fact Arun has error in his log-likelihood decoder). (This LDPC software is intended as an introduction to LDPC codes computer based simulation. The pseudo-random irregular low density parity check matrix is based on Radford M. Neal s programs collection, which can be found in [1]. While Neal s collection is well documented, in my opinion, C source codes are still overwhelming, especially if you are not knowledgeable in C language. My software is written for MATLAB, which is more readable than C. You may also want to refer to another MATLAB based LDPC source codes in [2], which has different flavor of code-writing style (in fact Arun has error in his log-likelihood decoder).)

基于matlab系统辨识的经典脉冲响应辨识，自己编写，效果不错。(Matlab system identification based on the classic impulse response identification, their preparation, good results.)

说明：  绘制3维阵列方向图，包括直线天线这列，和圆形天线阵列(Drawing 3D array pattern)

一些混沌系统原文件和李雅普落夫指数的计算(some of the original documents chaotic system and Li-fu Yap index calculation)

LS ESPRIT for frequency estimation

用径向基神经网络和BP网络预测的源码，径向基神经网络优于BP网络预测。(With RBF neural network and BP network prediction source, RBF neural network is better than BP network prediction.)

应用MATLAB基于元胞自动机的气体动力学仿真(Gas dynamics)

This is matlab code for generation of OFDM symbol using QAM modulation scheme

用matlab编写的三维魔方模拟显示，直接运行first.m即可(Three-dimensional cube simulation using matlab display, can be run directly first.m)

语音前期处理 对采集输入的语音信号进行倒谱分析(Pre-processing of the collected voice input voice signal cepstrum analysis)