Power_Spectrum_estimation

数学建模竞赛练习题-最优捕鱼模型的matlab代码(Mathematical modeling optimal fishing model matlab code. . . . . . . . . . . . . .)

粒子群算法的寻优算法，非线性函数极值寻优，MATLAB的经典算法(Particle swarm optimization algorithm, nonlinear function optimization extreme, MATLAB classical algorithm)

function [ H ,S ] = HS( f ) UNTITLED2 Summary of this function goes here Detailed explanation goes here syms x1 x2 f1=diff(f,x1) f2=diff(f,x2) S= [f1 f2] H = [diff(f1,x1) diff(f1,x2) diff(f2,x1) diff(f2,x2)] end s0=subs(S,findsym(S),[0 0])(function [H, S] = HS (f) UNTITLED2 Summary of this function goes here Detailed explanation goes here syms x1 x2 f1 = diff (f, x1) f2 = diff (f, x2) S = [f1 f2] H = [diff (f1, x1) diff (f1, x2) diff (f2, x1) diff (f2, x2)] end s0 = subs (S, findsym (S), [0 0 ]))

— In ultra-wideband (UWB) indoor dense multi-path transmission environments, traditional coherent Rake receiver requires estimation of channel parameters. Moreover, in order to collect enough signal energy from dense multi-path components, the number of Rake fingers must be large enough. Consequently, the receiver structure is too complex to be implemented in practice.

希尔伯特变希尔伯特变换 ，瞬时频率，边际谱换 ，瞬时频率，边际谱希尔伯特变换 ，瞬时频率，边际谱(希尔伯特变换 ，瞬时频率，边际谱希尔伯特变换 ，瞬时频率，边际谱希尔伯特变换 ，瞬时频率，边际谱)

包含了matlab中很多实用的函数及其算法，还有很经典的例子，适合初学者的学习以及查用。(Matlab contains many useful functions and its algorithm, there is still a classic example, suitable for beginners learning and reference.)

这个是对一个一维信号的Excel数据加载进matlab程序，然后进行巴特沃斯的低通滤波。(This is a one-dimensional signal of Excel data is loaded into the matlab program, and then Butterworth low-pass filtering.)

普通（硬）－ 均值聚类（HCM）算法是经典的硬聚类算法之一，能够对超椭球状的 数据进行分类(Ordinary (hard)- means clustering (HCM) algorithm is one of the classic hard-clustering algorithm, super-ellipsoid can sort the data)

对隧道交通建立数学模型，并用matlab求解，得到该模型下隧道的最大车流量。(A mathematical model for tunnel traffic and use matlab to solve, to get the maximum traffic tunnel model.)

简单的随机共振模型在MATLAB环境中的应用(Simple stochastic resonance model in MATLAB environment)