firefly

MATLAB TOOLBOX FOR PETRI NETS

完成对任意一个文本文件的字符统计工作。可以统计的信息有中文字符数、英文单词数、行数、字符个数（不计空格）和空格数。 (Calculate Chinese characters, English words the number of rows, number of characters (excluding spaces) and number of spaces in a txt file.)

本程序为malab的卡尔曼滤波器，用于雷达信号处理中航迹形(malab the procedures for the Kalman filter, for radar signal processing-Track)

扩频通信条件下单音干扰仿真，可以调节单音干扰的频率变化显示不同仿真结果(Under Interference Rejection Spread Spectrum Simulation)

一个演化博弈的小程序。非常有用。用matlab写的，非常非常有用。(a evolution game thoery simulation,a matlab program,it s very useful.really usefull,really really usefuly. kao,20 zifu?)

直流微网继电保护策略实现S-function的M文件，主保护为母线直流差动保护，基于小波分解的高频故障电流保护，后备保护为过电流保护，针对系统为2进2出的微网，只需将电流值输入，其中第一个输入变量为开关，为保护算法控制开始/关闭。(The relay protection strategy of DC microgrid realizes the M file of S-function. The main protection is busbar DC differential protection. The high frequency fault current protection based on wavelet decomposition and the backup protection is overcurrent protection. For the microgrid with 2 in and 2 out of the system, only the current value is input. The first input variable is switch, which starts/closes for the control of the protection algorithm.)

数字信号处理及其matlab实现 （美） Vinay k.ingle john g.proakis著 第三章(Digital signal processing and matlab implementation (U.S.) Vinay k.ingle john g.proakis the third chapter)

说明：  生物特征识别技术作为一种身份鉴别手段具有独特的优势。在生物特征识别系统中, 采集数据的预处 理是不可或缺的环节。以人脸识别为例, 介绍了一种在复杂背景的彩色图像中, 基于颜色和知识的生物特征预处理 方法。首先利用颜色信息从图像中分割出类肤色区域, 然后运用人脸几何特征和眼睛的提取定位人脸。仿真实验表 明, 该算法能较为准确地定位彩色图像中的正面或小角度偏转的人脸, 具有较快的运算速度。(Biometrics as an identification tool has a unique advantage. In biometric systems, collect data preprocessing is an indispensable link. To face recognition, for example, presents a complex background in color images based on color and knowledge of the biological characteristics of pretreatment. The first to use color information to separate out the classes from the image color region, and then use face extraction of geometrical features and eye positioning face. Simulation results show that the algorithm can be more accurately locate color images in a positive or small-angle deflection of the face, with a faster computational speed.)

多经环境下的锐利衰减信道的估计，仿真，测量以及获得相应的指数等的(using this model you will achieve the performance of the rayleigh fading channel issue)

图像变换及频域滤波 编写快速傅立叶变换算法程序，验证二维傅立叶变换的平移性和旋转不变性(The image transformation frequency domain filtering writing Fast Fourier Transform algorithm procedures to verify that the two-dimensional Fourier transform of the translational and rotational invariance)