nihe

Henon映射 - Main_Henon.m(Henon映射- Main_Henon.m)

本程序主要是针对一九杆结构进行的动力学分析，用newmark法，威尔逊法，状态空间法，子空间迭代法等求解了结构动态响应，并给出了图像显示(This program is mainly aimed at the structure of the 19 dynamic analysis, using newmark method, Wilson law, the state space method, subspace iteration method for solving the structural dynamic response, etc., and gives the image display)

matlab基于ActiveX技术实现对PPT的自动生成程序，这是按照已定型的模板写的，包含图片、文本、表格、图形等基本的PPT元素的自动生成与属性设置。(matlab based on ActiveX technology to automatically generate the PPT program, which is written in accordance with the template has been finalized, including images, automatically generate and property of the text, tables, graphics and other basic elements of PPT.)

说明：  QPSK仿真OQPSK仿真，通信原理资料上面的 (QPSK)

描述了化学元素对钢的性能的影响，值得一看，这是别人的资料(Description of the chemical elements in the performance of steel)

IIR滤波器的设计论文，基于MATLAB的设计。 希望它能对大家有一定的作用，谢谢！(IIR filter design paper, the design based on MATLAB. Hope that it will have some effect on you, thank you!)

Description All the filters have needed neighbor data the current pixel in the image,here this function(res_window=cover_window(how many neighbor value for row ,how many neighbor value for column ,input image) produce the result( res_window(row,col,total size)) input inp_img=2d data(row * col) w=cover size w=[3 3] = 3x3 cover pixel generation output o_img=result 3d o_img(w(1),w(2),r*col) if inp_img=[1 2 3 4 5 6 ] w=[3 3] Soloution it will construct new image new_img=[0 0 0 0 0 0 1 2 3 0 0 4 5 6 0 0 0 0 0 0] result o_img(:,:,1)=[0 0 0 0 1 2 0 4 5] o_img(:,:,2)=[0 0 0 1 2 3 4 5 6] finally o_img(1:3,1:3,6) example a=imread( pears.png ) b=rgb2gray(a) c=cover_window( b,[3 3]) 3x3 window construction

genetic algorithm combine Ant colony optimization for feature selection

说明：  7. 单径瑞利信道中的两发一收STBC： (1) 分析误码率的理论性能，画出比特信噪比与误码率的关系曲线。 (2) 请设计一种具体的导引辅助的信道估计方法，用Simulink进行仿真，测量BPSK调制时的误码率性能。画出比特信噪比与信道估计均方误差的关系曲线，画出比特信噪比与误码率的关系曲线。 (7 single-path Rayleigh channel of the two rounds of a close STBC: (1) the theoretical analysis of BER performance, draw the signal to noise ratio and bit error rate curve. (2) Please design a specific guide-assisted channel estimation method, the Simulink simulation, BPSK modulation measuring the bit error rate performance. Draw-bit signal to noise ratio and channel estimation mean square error curve, draw-bit signal to noise ratio and bit error rate curve.)

光纤无线通信系统中传输性能的研究，小波包分析提取振动信号中的特征频率，预报误差法参数辨识-松弛的思想。( Fiber Transmission wireless communication system performance, Wavelet packet analysis to extract vibration signal characteristic frequency, Prediction Error Method for Parameter Identification- the idea of relaxation.)