feijeng

introduction for plotting graphs in matlab

plot the examples .Useful for the beginners.

matlab仿真残差的方差估计模型的阶次(matlab Autocorrelation of residuals)

MATLAB 跳频通信系统仿真 20个字 20个字(MATLAB FH )

最小二乘窄带干扰消除，使用单步线性预测器（D=1）(NBI, when D=1)

产生一个长为1000的二进制随机序列，“0”的概率为 0.8，”1”的概率为0.2；  对上述数据进行归零AMI编码，脉冲宽度为符号宽度 的50 ，波形采样率为符号率的8倍，画出前20个符 号对应的波形（同时给出前20位信源序列）  改用HDB3码，画出前20个符号对应的波形  改用密勒码，画出前20个符号对应的波形  分别对上述1000个符号的波形进行功率谱估计，画出 功率谱  改变信源“0”的概率，观察AMI码的功率谱变化情况 (Base band signal spectrum)

digital signal processing

说明：  FIR汉明窗滤波器和IIR双线性变换法设计的低通滤波器，用于心电信号的滤波。(Hamming window FIR and IIR filter design bilinear transform low-pass filter for filtering ECG.)

国外计算机科学经典教材 Matlab Guide to Finite Elements 《Matlab有限元分析与应用》。使用于酷爱有限元与Matlab的相关人员。(Computer Science classics teaching abroad Matlab Guide to Finite Elements Matlab finite element analysis and application. Very fond of the finite element used in the relevant personnel with Matlab.)

采用神经网络实现手写识别的一种方法，建立Bp神经网络，采用快速训练方法，可快速完成一类相关手写字体的模式识别，识别率较高，当字体变化较大识别率降低时，可重新训练具有较强的适应性。实验证实本方法较好实现了手写字符识别，但也存在识别速度较慢，有时训练不收敛等缺点(Handwriting recognition using neural network is a way to establish Bp neural network, using fast training methods, and can be related to the completion of a class of handwriting pattern recognition, recognition rate higher recognition rate when the font changed greatly reduced, they can re- Training has strong adaptability. Experiments confirmed that this method achieved a better handwritten character recognition, but there are also identified slow, and sometimes non-convergence of the training deficiencies)