butterworthbpf

局部放电试验所采集的信号中往往混有白噪声、周期干扰信号去除。此处采用常用db系列小波中的db6小波进行9尺度的多分辨分解后，根据白噪声能量特性，估算各尺度的阈值大小，采用硬值进行处理，后进行重构。(Partial discharge test of the signal collected is often mixed with white noise, periodic interference signal removal. Here the use of commonly used wavelet db Series DB6 wavelet carried out in the 9-scale multiresolution decomposition, based on the energy characteristics of white noise to estimate the scale threshold size, the use of hard-value deal, after the remodeling.)

说明：  里面有8PSK，GMSK的matlab源程序，贡献出来了(I was interested in the theory for 8PSK and came across this m-file written in 1999. It requires 2 function calls (graymapPSK and grayunmapPSK) which I have included and must be uncommented(single comments only) and loaded into your workspace. Remove the function calls from this m-file after you load into your workspace. It seems to work well and give valid results for BPSK and QPSK but I have a question about the setup for 8PSK and the solution for Pseint where Pse=Pseint. Also, the Gray coding seems different than what I m used to. Some of you more theoretical minded may have some insight into the theory behind how Pseint was determined and comment. I don t have the communications toolbox-blockset and was wondering how it compared with Matlab s example simulation of 8PSK with Gray coding (in Simulink?) Each run takes about a minute and the loop iterations are shown in the command window. A numerical example of a satellite link is shown using uncoded QPSK )

说明：  lbg算法的实现，应用平台MATLAB.DAJIA DJFAIUDF(lbg algorithm, application platform MATLAB.DAJIA DJFAIUDF)

matlab中计算Lyapunov指数的程序(matlab program to calculate the Lyapunov exponent)

说明：  this is a set power points about Computer_Architecture

This function implements brute force bactracking to solve the knapsack problem.

MATLAB矩阵计算的例题。MATLAB矩阵计算的例题。MATLAB矩阵计算的例题。(MATLAB matrix calculation example. MATLAB matrix calculation example. MATLAB matrix calculation example.)

一个朋友给的关于CDMA的仿真程序!很难找到的!(to a friend on the CDMA simulation program! Very difficult to find!)

一个MIMO信道仿真实现的例子，有详细的文档说明和完整的代码(a MIMO Channel Simulation example, a detailed description and documentation of code integrity)

说明：  四杆桁架结构的有限元分析(Bar2D2Node); 三梁平面框架结构的有限元分析(Beam2D2Node); 基于3节点三角形单元的矩形薄板分析(Triangle2D3Node); 基于4节点四边形单元的矩形薄板分析(Quad2D4Node); 基于4节点四面体单元的空间块体分析(Tetrahedron3D4Node); 基于8节点六面体单元的空间块体分析(Hexahedral3D8Node);(Finite element analysis of four bar truss structure (bar2d2node); Finite element analysis of three beam plane frame structure (beam2d2node); The analysis of thin rectangular plate based on 3-node triangular element (triangle2d3node); The analysis of rectangular thin plate based on 4-node quadrilateral element (quad2d4node); Tetrahedron 3D 4node (Tetrahedron 3d4node) is used to analyze the spatial block; The spatial block analysis based on 8-node hexahedral element (hexahedral 3d8node);)