attachments_2011_07_01

my matlab program this for viterbi

一个快速k均值彩色图像的分割算法，运行环境是matlab！(A fast k-means algorithm for color image segmentation, the operating environment is matlab!)

这里实现的卷积码译码器可实现（n,1,K）的卷积译码，即一个输入码元，n个输出码元，编码器的约束长度为K，采用函数的默认值将实现（2,1,7）的卷积译码。译码方法为维特比硬判决译码，且译码开始状态假定为全零状态。(Here to realize convolutional code decoder can realize (n, 1, K) convolutional decoding, namely an input element, n output element, encoder constraint length is K, takes the default value of function, achieve the convolutional decoding,1,7 (2). Decoding method for decoding victor than hard decisions, and decoding the start state assumed to zero state.)

说明：  安装贝叶斯工具箱的方法，这是我个人总结的，已经在Matlab中用过，是可以的(Bayesian method of installing the toolbox, this is my personal conclusion, and has been used in Matlab, it is possible)

The program illustrates average or mean filter implementation in matlab.

实现了OFDM系统的建模仿真，精确比较了其误差，精度等问题。通过该系统的学习有利用其它通信传输模型的设计(realise OFDM system modeling and simulating.through this system,we can easy learing other commucation systens.)

我编的遗传算法matlab程序，请大家多多指教！(I made the genetic algorithm matlab program, please the exhibitions!)

factor of 32, with acceptable quality.What are the principles behind compression?A common characteristic of most images is that the neighboring pixels are correlated and therefore contain redundant information. The foremost task then is to find less correlated representation of the image. Two fundamental components of compression are redundancy and irrelevancy reduction. Redundancy

说明：  RBK Rao–Blackwellised particle filter 一种遝滤波器(RBK Rao–Blackwellised particle filter)

This is the demo file for L1 adaptive controller with unknown parameter, unknown disturbance, unknown control effectiveness: dot x(t) = Ax(t) + b(omega u(t) + heta(t)^ op x(t) + sigma(t)) DoSims.m: This script initializes the model parameters, run the simulation. You can split the parts you need and do the simulations according to your interest. L1Model_sec2.mdl:the implementation of the system. Refer to the following paper for background: C. Cao, and N. Hovakimyan, “L1 adaptive controller for systems with unknown time-varying parameters and disturbances in the presence of non-zero trajectory initialization error”, International Journal of Control, Vol. 81, No. 7, 1147–1161, July 2008