regressionOptimization

信号与系统试验报告 离散傅立叶变换（DFT）和频谱分析 一、实验内容 1、实验题目 （1）编写DFT、IDFT程序，并验证其正确性（提示：可利用冲激函数进行验证）。 （2）计算信号f(t)=e-at2sin(2∏ft)的离散傅立叶变换（DFT），求其振幅谱，相位谱、振幅最大值对应的频谱（检测主频）以及对发f(t)进行DFT变换的结果实现IDFT变换，并画出图形。 参数选择如下：频率f =30HZ，a=f 2㏑(M),M=2.5 2、通过实验理解信号振幅谱、相位谱的物理意义，掌握DFT、IDFT算法的实现方法。()

lt码的MATLAB实现,程序绝对正确，并且非常完善(lt code MATLAB implemention，program is absolutely correct and very well.)

em algorithm - Find approximate solution to Sf = conv(s,f) = d using EM iteration. EM seeks to minimize the Poisson negative log likelihood function J(f) = sum_i {[Sf]_i - (d_i + sigma^2)*log([Sf]_i + sigma^2)}.

多项式算法,使用matlab编程，里面有四种算法，进行比较(Polynomial algorithm, using matlab programming, there are four kinds of algorithms to compare)

这是由罗华飞编著的MATLAB GUI设计学习手记第二版的电子书籍(This is LuoHuaFei compiled by MATLAB GUI design study the second edition of the journal of electronic books )

2*2 mimo-ofdm系统的误码率测量。经过时不变信道(ber of 2*2 mimo-ofdm)

局部最小距离分类器，性能高于knn分类器，matlab环境下，可直接调用(Local minimum distance classifier, classifier performance than knn, matlab environment, can be called directly)

无刷双馈风力发电机的模型 BDFMdq 基于MATALAB的模型(Brushless doubly-fed wind turbine model MATALAB based on the model BDFMdq)

三次抽样插值的第一类边界条件插值，用于数据处理和科学计算，适合matlab科学计算者参考。(First boundary condition cubic interpolation interpolation sampling, data processing and scientific computing is used for scientific computing matlab reference.)

说明：  求解系数矩阵由16阶Hilbert方程组构成的线性方程组,Gauss-Seidel迭代法；(The solution of coefficient matrix consists of 16 Hilbert equations, Gauss-Seidel iteration method.)