DDA2Line

用于低截获概率雷达设计，计算出低截获概率的截获因子(For LPI Radar design, calculate LPI interception factor)

Finite element by Matlab

converter using mat lab

说明：  2015全国研究生数学建模，列车调度问题源代码(The code of National graduate mathmatical modeling competition about train schedule problem )

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).)

说明：  用matlab对并行notch滤波器进行仿真，此为源代码(With notch filter matlab parallel simulation, this is the source code)

卡尔曼滤波,用于加深理解卡尔曼滤波器的设计并认识扩展卡尔曼滤波器EKF和无损变化滤波器的优点(kalman filter，EKF and UKF)

说明：  线性实不变系统的各种傅里叶变换，z变换的分析与演示。适用于离散时间信号处理领域。(The same system of linear real Fourier transform, z transform analysis and presentation. For discrete-time signal processing.)

基于BP网络的分类方法，针对网上的BP分类没有权值调整的缺陷做了改进。(BP network based classification method for web-based BP classification not have the right to adjust the value of the shortcomings have made improvements.)

车牌识别，程序很全，希望大家能用的到，谢谢(License Plate Recognition)