qpsk_matlab

利用双线性变换法，设计一个0.4dB截止频率为10kHz且在30kHz处有最小阻带衰减为50dB的数字巴特沃兹低通滤波器，其抽样率为100kHz。利用教材（4.35）式求解原型模拟滤波器的阶数，并利用Matlab的M文件buttap设计模拟原型滤波器。用M文件bilinear将模拟滤波器传输函数变换成期望的数字传输函数。请用Matlab画出其增益和相位响应，并给出设计的具体步骤。(fuck!!!)

SCE-UA方法是模型率定中重要的模型参数全局优化算法，被广泛应用于水文模型中。(SCE-UA method is an important optimization method and can be used in the process of model calibration. )

This is some MATLAB m-files to simulate a communication system using convlutional channel coding and Viterbi algorith of decoding.

matlab基础学习，适合入门以及提高，初学者必看，很好的一本书(Matlab-based learning, for entry-raising, beginners must, good book)

电力系统经济负荷分配的matlab代码实现(Power system economic load allocation matlab code)

calcul the 6j matrice

粒子群算法的局部模型程序，比全局模型的效果要好，尽管收敛速度慢些，但是都能找到最优点。(PSO partial model program than the overall model is better effect, despite the convergence speed more slowly, But can find the most advantages.)

The following Matlab project contains the source code and Matlab examples used for two stage kalman fliter for system identification. Reference :Lei Y, Jiang Y Q. The source code and files included in this project are listed in the project files section, please make sure whether the listed source code meet your needs there.

储油罐的变位识别和罐容表标定的方法分析matlab程序(The displacement analysis of calibration method)

本文件对PID参数kp,ki,kd进行寻优，以ITAE作为指标函数。 PSO 文件中有详细的参数设置和寻优过程 GA寻优与PSO寻优作为对比出现 figure1展示了随着迭代次数的变化，适应度函数的收敛情况 figure2展示了kp,ki,kd的迭代情况 ht 文件是用来画图的 问题解决思路.pdf 简要介绍了粒子群算法寻优的过程(In this document, the PID parameters KP, Ki, KD are optimized, and ITAE is used as the index function. PSO file has detailed parameter settings and optimization process GA optimization and PSO optimization as a contrast appear Figure1 shows the convergence of fitness function as the number of iterations changes Figure2 shows the iterations of KP, Ki, and KD The HT file is used for drawing The problem solving idea.Pdf briefly introduces the process of particle swarm optimization)