bp_pso

Algorithm of Netwon and secand method

递归算法 [1 1 1 1 1 0 1 0 0 0 1 0 0 0 0 1 1 0 0 0 1 1 1 0 0 1 1 1 1 0] t=[0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 1] 给权值赋初值 w1=eye(5,10) w2=eye(10,5) wr=eye(10,10)/3 wobias=eye(6,5)/4 wbias=eye(6,10)/3 x=ones(6,10)/3 ww2=zeros(10,5)/6 ww1=zeros(5,10)/6 wwr=zeros(10,10)/6 wwobias=zeros(6,5)/5 wwbias=zeros(6,10)/4 g=[1 1 1 1 1] f=[1 1 1 1 1 1 1 1 1 1] (Recursive algorithm)

频谱感知算法，包含了最基本的感知算法，能量检测、循环平稳检测(Spectrum sensing algorithm contains the most basic perception algorithms, energy detection, cyclostationary detection)

MATLAB图形系统 1、掌握利用MATLAB提供的图形函数来建立图形 2、理解MATLAB图形系统的概貌 (MATLAB graphics system)

fruit recongnize is importart understand the code beefore of play

产生瑞利衰落信道的matlab 仿真程序(Generate Rayleigh fading channel matlab simulation program)

intrinsic image decomposition

最小二乘ESPRIT (LS-ESPRIT)的Matlab实现与相关性能分析，直接由特征值确定DOA，大大减少了计算量；不需要精确知道阵列流型向量，对阵列校准要求不严格。(analysis and performance to LS-ESPRIT achieved by the Matlab, DOA value is determined directly by the characteristics, greatly reducing the amount of calculation do not need to know the exact array manifold vectors, not strictly on array calibration requirements.)

实现了给予人脸的特征提取与模式识别，是模式识别中比较经典的实例分析(Achieved a given facial feature extraction and pattern recognition, is the more classic examples of pattern recognition analysis of)

this code receive a string from input and calculation shanon code