format_burst

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).)

source code for matlab simulation

有限差分数值模拟程序，进行地震波正演，采用的是交错网格(Finite difference numerical simulation program, conducting seismic forward modeling, USES a staggered grid)

简单pid和串级pid的matlab仿真(Simple cascade pid pid and the matlab simulation)

本例程功能是实现SPWM单极性调制。本例程搭建了完整的模型，能够对单极性SPWM进行研究。(The routine SPWM unipolar modulation. The routines to build a complete model, Unipolar SPWM research.)

光子晶体中吸收介质，其等效介电函数的虚部与实部的共振曲线模拟。(Dielectric absorption in photonic crystals, the resonance curve of the imaginary part of the dielectric function and the real part of the simulation. )

通信原理实验生成软件及相关代码，调制解调（C生成）(Communication principle experiment generation software and related codes, modulation and demodulation (C generated))

convert temperature C-->F, F-->C

二自由度四分之一车模型，matlab/simulink(Two degrees of freedom quarter car model, matlab/simulink)

可以用来计算分歧度，这个分析度是信息论中的一个概念，类似于熵。(we can use it to calculate the klsym divergence)