FIR-IIR

code based on downsampling

说明：  压缩包里包含了无约束优化问题常用的几种求解方法的源程序：变量轮换法（variable_rotation.m）、最速下降法（steepest_descent.m）、修正牛顿法（modified_newton.m）、共轭梯度法（conjugate_gradient.m）。另外，coefficient_matrix.m为目标函数系数获得矩阵，minval.m为最小值计算函数，gradient.m为梯度计算函数(Compression bag contains unconstrained optimization problems of several commonly used method of source: variable rotation Act (variable_rotation.m), steepest descent method (steepest_descent.m), as amended Newton (modified_newton.m), conjugate gradient method (conjugate_gradient.m). In addition, coefficient_matrix.m as the objective function coefficients obtained matrix, minval.m function for the minimum calculation, gradient.m for gradient calculation function)

这是一个关于船舶回转实验的simulink仿真实验连接图。(This is a ship of the experiment about turning simulink experiment connection diagram.)

雷达信号处理中的CFAR仿真程序，同时比较了在相同虚警率下的理想检测门限、单元平均CFAR检测门限、审核式CFAR检测门限、有序统计CFAR检测门限。(this is a program about cfar in radar signal processing。)

It is about matlab which depicts brain image segmentation

三相并网逆变器，输出5KW有功功率，采用电压、电流双闭环控制策略。(Three-phase grid-connected inverter output active power 5KW, using voltage and current double closed loop control strategy.)

里面搜集了各种用matlab编写的回归分析算法，相信对参加建模竞赛的同学们会有所帮助。(Which collected a variety of regression analysis using algorithms written in matlab, I believe the students who participate in modeling contest will help.)

How write a bussines plan

完成M=4的正交信号的数字通信系统的蒙特卡罗仿真。分析其在加性高斯白噪声下误码率与信噪比之间的关系，绘出误码率-信噪比曲线图，并和物理曲线进行比较。(The completion of M = 4 orthogonal signals in Monte Carlo simulation of digital communication systems. Analysis of the additive white Gaussian noise bit error rate and signal to noise ratio under the relationship between the mapped BER- signal to noise ratio curve, and and physical curves for comparison.)

matlab灰色模型，基本的代码，写的比较详细 (Matlab grey model of the basic application )