matlab-sourcecode-for-

本程序可仿真IEEE802.16e LDPC编解码器，程序设计原理见本人如下专著。 [1] 肖扬著, Turbo与LDPC编解码及其应用,人民邮电出版社，2010. [2] 肖扬著, MIMO多天线无线通信系统，人民邮电出版社，2009。 本程序只用于科研，不得用于其它场合。(The program can simulate LDPC codec with IEEE 802.16e LDPC of the size 2256*4512, and 1/2 code rate. Copyright (C2010-2015) Yang XIAO, Beijing Jiaotong University, Nov.3, 2010, E-Mail: yxiao@bjtu.edu.cn. Current Version Published: 2010-11-3 In my following books, I derived the algorithm of constructing the parity check matrices of IEEE 802.16e LDPC. [1] Y. Xiao, Turbo and LDPC Codecs and their Applications, Press of Posts and Telecommunications, Beijing, 2010. [2] Yang Xiao, MIMO Multiple Antenna Wireless Communication Systems, Press of Posts and Telecommunications, Beijing, 2009. This program also provides the LDPC code with the size 4512*2256, and 1/2 code.)

Iris recognition using Support vector machine and Hamming distance

计算Allan方差，用于导航数据分析，对于学习allan方差有一定帮助(Allan variance calculation for navigation data analysis, learning allan variance of some help)

Power control, broadly speaking, is the intelligent selection of transmitter power output in a communication system to achieve good performance within the system. The notion of good performance can depend on context and may include optimizing metrics such as link data rate, network capacity, geographic coverage and range, and life of the network and network devices. Power control algorithms are used in many contexts, including cellular networks, sensor networks, wireless LANs, and DSL modems.

生成TB-SMA势函数的文件，TB-SMA势函数是一种描述金属非常好的势函数(This code is generate the TB-SMA poential.and TB-SMA is very useful when U need to describe the metal)

一般情况下，ellipse函数只能实现尺度较小的椭圆模拟，次程序实现长短轴较大且椭圆中心在任意象限情况下的椭圆模拟函数(for the semi-major and semi-minor ellipse simulation)

3G物理层调制和解调的演示仿真模型。 A simulation of physical layer of 3G communication system.(3G physical layer modulation and demodulation of the display simulation model. A simulation of physical layer of 3G communicat ion system.)

Fractal dimension (FD) calculation using differential box counting algorithm.

lab3 : Spatial Filtering

用牛顿拉夫逊法的极坐标形式计算电力系统潮流(Newton Raphson method polar form power flow calculation)