chepai

主成分析matlab图形用户界面代码，包含测试文件。(principal component analysis matlab gui code. test file included.)

调用cvx工具箱，设置好要输入的参数，即可获得指定参数的失配脉压系数。(use cvx to generate mismatched filter code)

说明：  基本的遗传算法matlab语言实现，可变换其中的目标函数，实现计算(Basic genetic algorithm matlab language can transform one of the objective function, the realization of the calculation)

自校正PID控制，适用于二阶系统，对象参数未知的情况，MATLAB程序(Case self-tuning PID control for second-order system with unknown parameters object, MATLAB program)

低密度奇偶校验码（LDPC）及其译码算法仿真实现，并有误码率分析，是matlab的程序(Low-density parity check code (LDPC) decoding algorithm simulation and realization, and bit error rate analysis, is matlab program)

产生持续固定持续时间的正弦脉冲并绘制出其频谱图 (Have a fixed duration of continuous sinusoidal pulse and frequency spectrum to map out its)

说明：  FEA 有限元计算matlab很早以前编制的程序，适应新的matlab环境。(FEA finite element matlab long ago programmed to adapt to the new matlab environment.)

This is a collection of simulink blocks implementing simple nonlinear dynamical systems that generate attractors. Two types of general 3D simulink scopes (coded in the s-functions sfunxyz.m and sfunxyzd.m) are used to display in 3D, the evolution of the system during the simulation. Currently (March 2007), the featured systems are Lorenz, Van Der Pol, simple Lotka-Volterra, competitive N-D Lotka Volterra and Henon.

k-medoids实现网络社区聚类，含有使用说明书和算法原理(k-medoids clustering for network communities, containing instructions and algorithm theory)

Parameter Estimation using Prediction Error Method