hopf

基于HCNR201的信号测量电路的研究，实际测量，实际电路(Signal measurement circuit based on HCNR201 study, the actual measurement, the actual circuit)

WOLF Searches steepest descent method

3 dimensin grafik simulator

设计一维纳滤波器 (1). 产生三组观测数据：首先根据S(n)=aS(n-1)+w(n)产生信号S(n)，将其加噪声(信噪比分别为20db，10db，6db)，得到观测数据X1(n)，X2(n)，X3(n)。. (2). 估计Xi(n)，i=1，2，3的AR模型参数。假设信号长度为L，AR模型阶数为N，分析实验结果，并讨论改变L，N对实验结果的影响。(Design a Wiener filter (1) produces three sets of observations: First, according to S (n) = aS (n-1)+ w (n) generates the signal S (n), to add noise (SNR are 20db, 10db, 6db ), obtained observational data X1 (n), X2 (n), X3 (n). . (2) estimated Xi (n), i = 1,2,3 of the AR model parameters. Assuming the signal length L, AR model order N, the analysis of experimental results, and discuss the changes in L, N to the experimental results.)

Matlab 函数逼近与拟合... 有理函数逼近... 常用的正交多项式逼近..各种最小二乘拟合...连分式逼近... Padé逼近... 傅里叶逼近...(Matlab Function Approximation and Fitting code)

支持向量机以统计学习理论作为坚实的理论依据，借助优化方法解决及其学习的一种新工 具.近年来，支持向量机受到人们的广泛关注，在理论研究和算法实现方面都有了很大的突 破，成为现代机器学习的热点课题.(Support vector machine(SVM)is a new approach that can solve machine learning problem with optimization methods. In recent years,there has been a surge of interest in SVM.It has achieved a prodigious progress in the theory research and algorithm implement, thus has been an active research area in machine learning)

1. Transfer function to state space model transfer function to state space A=[1 1 1] B=[1 6 11 6] [A,B,C,D]=tf2ss(num,den)

给出接收信号眼图及系统仿真误码率，实现了对10个数字音的识别，信号维数的估计，本科毕设要求参见标准测试模型，插值与拟合，解方程，数据分析，是小学期课程设计的题目，车牌识别定位程序的部分功能，考虑雨衰 阴影 和多径影响。 ( The received signal is given eye and BER simulation systems, To achieve the recognition of 10 digital sound, Signal dimension estimates, Undergraduate complete set requirements refer to the standard test models, Interpolation and fitting, solution of equations, data analysis, Is the topic of the elementary school stage curriculum design, Part of the license plate recognition locator feature, Consider shadow rain attenuation and multipath effect. )

本matlab程序实现地球和天球坐标间的转换，对于天文和航天领域的初学者有一定帮助(Terrestrial and Celestial Coordinate transform)

MWC2.1飞控 arduino代码设置(MWC2.1 flight control arduino code set)