BPSK+AWGNdematlab

无限长的序列也往往可以用有限长序列来逼近。对于有限长的序列我们可以使用离散傅立叶变换（DFT）。DFT是对序列傅立叶变换的等距采样。是序列傅立叶变换的等距采样。 本源码是对DCT、DFT、FFT的matlab实现(Infinitely long sequence is often a long sequence with limited approximation. For the finite length of the sequence we can use the discrete Fourier transform (DFT). DFT is a sequence of equidistant sampling Fourier transform. Is a sequence of equidistant sampling Fourier transform. The source is the DCT, DFT, FFT in matlab implementation)

等参单元，用于弹性力学分析，数值积分法等(Isoparametric element，For elastic mechanics analysis, numerical integration method, etc.)

包括语音的录制程序，加噪程序，以及标准的噪声库，还有用谱减法实现带噪语言信号的增强等程序(ncluding voice recording program, noise procedures, and standards of noise library, as well as achieve the noisy speech signal enhancement using spectral subtraction procedure)

计算高斯光束束腰半径调节compute guassian beam (compute guassian beam )

胡不变矩相关代码，有所需图片和源程序m文件(Invariant moments)

设计一个matlab雷达信号仿真界面程序。（提示：例如可以根据选择产生一个不同类型噪声（均匀分布、高斯分布等类型），并在界面中显示该噪声时域图形，并能根据要求画出该噪声的自相关、FFT等信号处理后的结果。）(Design a matlab radar simulation interface program. (Hint: for example, can choose to generate a different type of noise (uniform distribution, Gaussian distribution type), and the noise in the interface displays the time domain graph, and can draw upon request of the noise autocorrelation, FFT and other signal processing the results.))

homotopy算法求解非线性方程组 (homotopy method for solving nonlinear equations)

基于QR分解算法的自适应波束方向图形成，运算量较小(adaptive beamforming algorithm based on QR decomposition)

skelton detection by delition

说明：  指纹灰度方差均值的归一化处理~一小段程序~图像预处理(Fingerprint gray variance of normalized mean a short program ~ ~ Image Processing)