dianjishiliangkongzhi

LDPC码既低密度奇偶校验码（Low Density Parity Check Code，LDPC），它由Robert G.Gallager博士于1963年提出的一类具有稀疏校验矩阵的线性分组码，不仅有逼近Shannon限的良好性能，而且译码复杂度较低, 结构灵活，是近年信道编码领域的研究热点，目前已广泛应用于深空通信、光纤通信、卫星数字视频和音频广播等领域。LDPC码已成为第四代通信系统(4G) (LDPC codes BER simulation under AWGN channel. MacKay-Neal based LDPC matrix. Message encoding uses sparse LU decomposition. There are 4 choices of decoder: hard-decision/bit-flip decoder, probability-domain SPA decoder, log-domain SPA decoder, and simplified log-domain SPA decoder.)

Matlab GUI编程中文参考手册，以及一些基本的程序介绍(Matlab GUI Programming Reference Manual, as well as some basic procedures for introduced)

此文件为ofdm的matlab仿真程序，详细画出了时域和频域的相关图，以及调制信号的实虚部。(This file is the matlab ofdm simulation program, detailed drawing of the time domain and frequency domain correlation diagram, and the modulation signal real and imaginary parts.)

很好的一个一维条码检测识别源码，作为参考很有用(Very good detection and recognition of a one-dimensional bar code source, as a useful reference)

有限体积法 求解 一维二维对流扩散问题 离散格式有：中心差分和乘方格式(finite volume method solve convection and diffusion problem)

code dijkstra for shortest path

basic model of solar power

this source is very helpfull for technology student, who is the first in programming with matlab,

电力负荷预测是电力系统规划的重要组成部分，也是电力系统经济运行的基础，其对电力系统规划和运行都极其重要。利用粒子群算法优化支持向量机更加高效准确预测电力负荷。(The power load forecasting is an important part of the power system planning, and it is also the basis of the economic operation of the power system. It is very important to the planning and operation of the power system. Particle swarm optimization is used to optimize SVM to predict power load more efficiently and accurately.)

matlab 语言编程实例 及仿真图像 原理图