for_help

说明：  频域的模态参数识别方法之一，可以对振动信号进行分析处理，得出结构的固有频率，阻尼比，振型系数，方法很好，程序完整，(Frequency-domain modal parameter identification methods that can analyze the vibration signal processing, draw the structure of natural frequencies, damping ratio, mode shape coefficient, very good method, program integrity,)

a program to divide a sequence to subsequences. Helpful for the OFDM simulations: Function to divide the input sequence to sub sequences s2ss - Function 1. (cd) Input the data 2. (hl) Hadamard matrix length 3. Outpot of the function is an array st(m,outs). m is the number of the produced symbols outs are the new sequences where their length is 0.75*hl where hl is the Hadamard length. Montadar Abas Taher 12/03/2011

On Sunday, April 27, 2003, Fresno will celebrate Earth Day in downtown Fresno at Courthouse Park. The event will begin at noon. This year we will include music, speakers, and vendors, plus activities for children. Fresno Earth Day is recognized as the only Earth Day festival that happens in Fresno, and the largest in the Central Valley. The Fresno Earth Day Committee is a small group of environmental activists hoping to broaden the appeal of a better planet and environment. We are a non-profit organization whose fiscal fiduciary is the Fresno Center for Nonviolence.(On Sunday, April 27, 2003, Fresno will celebrate Earth Day in downtown Fresno at Courthouse Park. The event will begin at noon.This year we will include music, speakers, and vendors, plus activities for children.Fresno Earth Day is recognized as the only Earth Day festival that happens in Fresno, and the largest in the Central Valley. The Fresno Earth Day Committee is a small group of environmental activists hoping to broaden the appeal of a better planet and environment. We are a non-profit organization whose fiscal fiduciary is the Fresno Center for Nonviolence.)

说明：  用BP进行预测的实例，既包括数据，也有预测误差图。已经运行可用。请参考(Examples of prediction using BP, both data and prediction error map also. Is already running are available. See)

SAR的点目标仿真 两点目标的回波仿真 两点目标距离向压缩 两点目标距离向和方位向压缩(SAR point target simulation two goals echo simulation two target range compression points to the distance and azimuth compression)

求单源最短路径的Dijkstra算法的Matlab程序 求Euler回路的Fleury算法的Matlab程序 求最小生成树的Prim算法的Matlab程序 求Huffman树的Matlab程序 最大流算法Matlab程序 求任意两点间最短路的Floyd算法的Matlab程序 (Seeking single-source shortest path Dijkstra algorithm Matlab program Euler circuit Fleury seeking algorithm Matlab program Seeking Prim minimum spanning tree algorithm Matlab program Matlab program seeking Huffman tree The maximum flow algorithm Matlab program Seeking the shortest path between any two points of the Floyd algorithm Matlab program )

使用matlab编程实现OFDM的收发一张图片，查看相关性能！(Use matlab programming OFDM transceiver, a picture, view the associated performance!)

Bessel低通滤波器特性幅频及相频特性分析及其阶跃响应和方波响应(Bessel low-pass filter characteristics of amplitude and phase frequency characteristics of frequency and step response and the square wave response)

Mapper for QAM 2,4 and 6 bits, taking streams and mapping 2 symbols for Modulation

基于matalb/simulink的模糊PID控制仿真。波形良好。 包括常规PID控制与模糊PID的对比仿真，以及加入延时的系统仿真和加入干扰后的系统仿真，均已经过调试，波形结果很好。 大家可直接用于借鉴学习。(Fuzzy PID control simulation based on matalb/simulink. Good waveform. Including the conventional PID control and fuzzy PID contrast simulation, and adding delay system simulation and adding interference after the system simulation, have been debugging, waveform results are very good. We can learn from them directly.)