20051224192310-2

选取windows系统自带的ding.wav信号作为分析对象，在Matlab软件平台下，利用函数wavread对音频信号进行采样，记住采样频率和采样点数，听一下原始声音sound(y, fs, bits)。 （2）音频信号的频谱分析，先画出音频信号的时域波形；然后对音频号进行快速傅里叶变换fft(y,N)，N取32768，画出信号的频谱特性，加深对频谱特性的理解。 （3）根据频谱，反演时域特性，画出时域波形。寻找幅值最大的两个频率，此频率除以fft点数在乘以采样频率就是信号的主频，即可合成信号的时域图形，听一下声音。 （4）对原音频信号进行1024点的分段付立业分析meshgrid （5）根据主要频线合成音频，并画出时域图形，试听合成效果。 （6）采用线性插值（linspace）和傅立业反变换(fliplr, ifft)分别合成音频，并画出时域图形，试听效果。 (err)

PADE降阶MATlab程序 降阶后的分子分母次数可以随意的给定(PADE reduction MATlab numerator and denominator after reduction procedure can be arbitrary given the number of)

小波神经网络研究的进展及一种新算法，希望可以抛砖引玉(WNN progress of the studies and a new algorithm, hope to start)

波束形成MATLAB程序，包括线阵、平面阵和圆阵，通过matlab程序，了解波束成形的算法过程，以及其含义.内容充实，希望对大家有帮助.(Beamforming MATLAB procedures, including linear, planar array and circular array, through matlab program to understand the process of beamforming algorithm, as well as its meaning. Informative, we want to help.)

THEORY OF ALL POWER SYSTEM DEVICES

编写的FDTD三维的CPML 吸收边界条件总场散射场

智能天线技术 DOA估计-算法 波达方向估计 capon算法 (Smart antenna technology in DOA estimation algorithm for DOA estimation algorithm for capon)

J-K变换器综合滤波器各级K值对应的散射矩阵的S参数对应值-适合做射频微波领域滤波器的相关人士使用(S parameter corresponds to the value of the J-K converter integrated filter K values at all levels of the corresponding scattering matrix- stakeholders suitable for RF and microwave filters using field )

Matlab Image Fusion Toolbox for image fusion algorithm based on bandelet transform. This toolbox contains Matlab files that implement the image fusion algorithms described in paper Xiaobo Qu, Jingwen Yan, Guofu Xie, et al. A Novel Image Fusion Algorithm Based on Bandelet Transform. Chinese Optics Letters,Vol.5,No.10,pp:569-572, 2007

说明：  采用FDTD计算2维光子晶体的散射和透射的可执行程序小软件(Calculated using FDTD 2-D photonic crystal scattering and transmission of the executable program small software)