two-step-encryption-and-decryption

Plots the irradiation diagram of a random N isotropic elements array

采用脉冲响应不变法和双线性变换法设计IIR数字滤波器。 (Using impulse response method and bilinear transform IIR digital filter design. )

基于MATLAB的声卡失真度测量本设计运用了基于MATLAB的DAQ工具箱（Data Acquisition Toolbox）的数据采集技术。(MATLAB-based sound card distortion measurement used in this design toolbox based on MATLAB-DAQ (Data Acquisition Toolbox) data acquisition technology.)

最短路径的MATLAB语言算法，最经典的算法，图形显示结果(The MATLAB language of the shortest path algorithm, the classic algorithm，Graphical display results )

对采用双二进制信号脉冲的2电平PAM通信系统进行Monte Carlo仿真。输入二进制序列为{bn},预编码序列为{dn},幅度序列为｛an},相关序列为{cn}。将高斯噪声加到接收序列{bk}上去以形成检验信号的输入，并恢复这个数据。对1万个比特执行这个仿真，并在σ2=0.1,0.5,1时分别测量比特差错概率。用此概率跟无ISI的PAM的BER曲线作对比并进行分析。(Partial-Responsing Signal。)

基于matlab的通信系统仿真（调制到中频，基带成形）(Matlab-based communications system simulation (modulated IF, baseband shaping))

matlab有限元分析工具箱，包含gui界面(Matlab finite element analysis toolbox, including the GUI interface)

说明：  图像的贝叶斯分类MATLAB程序，最优阈值迭代法(Image of the Bayesian classifier MATLAB program，Iterative method of optimal threshold)

最近邻算法(KNN)matlab代码实现，附数据集(Nearest Neighbor algorithm (KNN) matlab code, with data sets)

说明：  用于快速定位有颜色 背景的车牌， 希望和大家共享，(It is used to locate car plate with color background. I d like to share with all of you.)