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快速傅立叶变换的matlab算法实现。（是一个按照时间抽取的基-2快速傅里（基-2 FFT-DIT）。输入倒位序，输出自然顺序。(Fast Fourier Transform algorithm matlab. (Which is a time of extraction in accordance with the base-2 Fast Fu-ri (base-2 FFT-DIT). Enter the inversion sequence, the output of natural order.)

二维卷积运算 能够实现图片的卷积处理 绝对原创(Absolute original two-dimensional convolution)

文章从车牌定位、 车牌字符分割和车牌字符识别 3个阶段对对车牌识别技术进行了深入研究，并用MATLAB进行了仿真。 (Article from the license plate location, license plate character segmentation and character of the license plate to identify three stages in-depth study on the license plate recognition technology, and simulation using MATLAB.)

改程序为matlab中自定义函数，并保存为变量等进行进一步操作做了简要编译，适用于初学者学习，方便(The program for matlab custom function, and save for variables for further operation do a brief compilation, it is suitable for beginners to learn, convenient)

现代信号处理大作业2-2，实现wv分布并画出3d图，指出了信号项和交叉项(2-2 large modern signal processing operations to achieve wv distribution and draw 3d map, pointing out items and cross-term signal)

基于神经网络的分类，实验数据与结果均在文件夹里，简单的例子将会初学者学习怎么样通过神经网络进行分类与模式识别，很实用的入门程序。(Classification based on the experimental data and the results of neural networks are in the folder, a simple example would be for beginners to learn how to classify and pattern recognition, it is useful entry procedures by neural networks.)

雷达中频目标回波，线性调频脉冲多普勒起伏模型！希望对亲有帮助！！(IF radar target echo Doppler downs chirp model! I hope to help the pro! !)

％ [BestPop,Trace]=fmaxga(FUN,LB,UB,eranum,popsize,pcross,pmutation) ％ Finds a maximum of a function of several variables. ％ fmaxga solves problems of the form: ％ max F(X) subject to: LB <= X <= UB ％ BestPop--------最优的群体即为最优的染色体群 ％ Trace----------最佳染色体所对应的目标函数值 ％ FUN------------目标函数 ％ LB-------------自变量下限 ％ UB-------------自变量上限 ％ eranum---------种群的代数,取100--1000(默认1000) ％ popsize--------每一代种群的规模；此可取50--100(默认50) ％ pcross---------交叉的概率,此概率一般取0.5--0.85之间较好(默认0.8) ％ pmutation------变异的概率,该概率一般取0.05-0.2左右较好(默认0.1) ％ options--------1×2矩阵,options(1)=0二进制编码(默认0),option(1)~=0十进制编码,option(2)设定求解精度(默认1e-4)( [BestPop, Trace] = fmaxga (FUN, LB, UB, eranum, popsize, pcross, pmutation) Finds a maximum of a function of several variables. Fmaxga solves problems of the form: max F (X) subject to : LB <= X <= UB BestPop-------- optimal chromosome groups is the best group Trace---------- chromosome corresponding to the best objective function value FUN------------ objective function LB------------- variable lower limit since the UB------------- variable upper limit eranum--------- populations algebra, take 100- 1000 (default 1000) popsize-------- population size of each generation this desirable 50- 100 (default 50) pcross--------- crossover probability, the probability of a general check 0.5- 0.85 between the better (default 0.8) pmutation------ mutation probability, the probability of 0.05 general admission better about-0.2 (default 0.1) options-------- 1 × 2 matrix, options (1) = 0 binary code (default 0), option (1) ~ = 0 decimal coding, option (2 ) set accuracy (default 1e-4))

用于脑电分析的各类源码，包括功率谱密度检测，事件相关同同步/去同步分析，脑地形图绘制等，已通过测试。 (For EEG analysis of various types of source, including the power spectral density testing, events associated with synchronization/desynchronization analysis of brain topographic mapping, etc., has been tested.)

to find the discrete fourier transform using the fast fourier algorithm, any sequence of lengths which are multiples of 2 simply append zeros to satisfy this requirement