Degreeedrz

本程序主要用于DDS算法的验证,可以生成正弦波，占空比可调的方波，三角波；其中频率控制字可调，生成波形的频率也可调。(This procedure is mainly used for verification DDS algorithm, can generate sine wave with adjustable duty cycle square wave, triangle wave including adjustable frequency control word to generate adjustable frequency waveform.)

基于FFT平面相控阵天线方向图快速计算 (Figure quickly calculate FFT-based planar phased array antenna direction)

现有一个信号：x(n)=1+cos(π*n/4)+ cos(2*π*n/3)设计及各种数字滤波器以达下列目的： 低通滤波器，滤除cos(2*π*n/3) 的成分，即想保留的成分为1+cos(π*n/4) 高通滤波器，滤除1+cos(π*n/4) 的成分，即想保留的成分为cos(2*π*n/3) 带通滤波器，滤除1+cos(2*π*n/3) 的成分，即想保留的成分为cos(π*n/4) 带阻滤波器，滤除cos(π*n/4) 的成分，即想保留的成分为1+cos(2*π*n/3) 1. 用MATLAB命令butterord求除滤波器的阶数,用命令butter设计各滤波器；画出滤波器幅度和相频相应 取各滤波器的系统函数H(z)。 (an existing signal : x (n) = a cos (* n/4) cos (2** n/3) design and digital filter to achieve the following objectives : low-pass filter, filter cos (2** n/3) the ingredients that want to retain an element of a cos (* n/4) high-pass filter, a filter cos (* n/4) components, namely to retain the element of cos (2** n/3) band-pass filter , a filter cos (2** n/3) components, namely to retain the element of cos (* n/4) band stop filter, the filter cos (* n/4) components, namely to retain the ingredients for a cos ( 2** n/3) 1. MATLAB order butterord except for the band Filter, using the order of the filter design butter; paint Filter magnitude and phase frequency of the corresponding filter system function H (z).)

This program can generate a pulse from a given spectrum

Pattern recognition of letters and faces using PCA

计算自然样条曲线的MATLAB程序 输入的量X和Y分别是由节点（x_i,y_i）（i=0,1,2,...,n）的横坐标和纵坐标组成的向量。(A Matlab program for calculate natural spline)

关于高斯塞德尔和雅可比矩阵以及牛顿拉佛逊法的详细例子,主要是采用matlb中的语言编写的(Sise and Bender on the high Jacobian matrix and the Newton Raphson method Laffer detailed examples, mainly used in languages matlb)

跳频系统的Simulink模块实现,运行很快很好用(The Simulink module of frequency hopping systems, running good soon)

该程序用于多普勒频率估计，可以估计多普勒模糊数与基带多普勒频率，从而得到解模糊情况下的多普勒频率，算法基于IEEE文章提出的wavelength diversity 算法所写的。(This programme is used to resolve the absolute doppler frequenc without doppler ambiguity.The algorithm is based on the wavelength diversity idea proposed by the IEEE paper.)

认知无线网络学习代码,主要从性干噪比和功率的优化功率控制(Cognitive learning code wireless network)