algorithm

说明：  BUCK类型的DCDC变换器，经过调试效果良好，欢迎下载(BUCK types of DCDC converters, through commissioning works well, welcome to download)

卡尔曼滤波下的的ARMA、MA、AR模型，比较全面，特别适合初学者入门(Kalman filtering under the ARMA, MA, AR model, a more comprehensive, especially for beginners)

learn network securty is fun for arsitecture network

hessian point detector 是SURF算法中所采用的基于Hessian矩阵进行的特征点检测方法，检测得到椭圆区域。(feature detector)

The reliable data delivery is a challenging task in Wireless Sensor Networks (WSNs) due to dynamic and unpredictable changing behaviors of nodes. The traditional cryptographic and authentication based schemes can’t be adopted due to their associated cost and incapability to counter nodes misbehavior attacks. Recently, trust based solutions have proved to be more effective to address nodes’ misbehavior attacks.

说明：  可用于求解物流配送路径优化问题，即vrp问题，算法采用的是蚁群算法(It can be used to solve the VRP Problem, which is an ant colony algorithm)

horn-schunck算法的MATLAB函数 (horn-schunck algorithm MATLAB function)

单纯形法整定pid参数,simulink环境,单纯形法很依赖初值的选取,在canshu.m中输入初始值。(Simplex method pid tuning parameters, simulink environment, simplex method is very dependent on the selection of initial value, in canshu.m enter the initial value.)

现需要在高度为600~700KM范围内，回归周期为30天的太阳同步轨道上布置一颗L波段的合成孔径雷达卫星。 1. 请设计合适的轨道参数，并仿真对应轨道下一个运行周期内星下点轨迹图（纬度和经度两个图）； 2. 计算多普勒中心频率，多普勒调频率与纬度的关系图（设姿态角为0°，天线视角20°~60°，推荐35°）； 3. 按高斯投影方式，将星下点轨迹图投影到地图坐标上。(Now requires a height of 600 ~ 700KM range, return period of 30 days are arranged on a sun-synchronous orbit L-band Synthetic Aperture Radar satellites. 1 Please design the appropriate orbital parameters and simulate the corresponding orbit within the next operating cycle nadir trajectories (latitude and longitude two graphs) 2. Calculate the Doppler center frequency, Doppler frequency and the relationship between latitude Figure (set attitude angle is 0, the antenna angle of 20 to 60, recommended 35) 3 Press Gauss projection, the nadir trajectories projected onto the map coordinates.)

This is my first upload which contain some stuff files from my final project.