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this is the best book of SmartCard programming. It will help you to have windows programming with C

一本经典的关于光子晶体的书，由John于1987年编写，是学习光子晶体的人不可错过的好书(A classic book on photonic crystals, prepared by the John in 1987, is the study of photonic crystals books were not to be missed)

Simulation doppler effect in matlab

frequency filters in matlab

very valuble video processing algorithems

多址接入协议仿真——都可以运行仿真出图！(Multiple access protocol simulation)

used to perform edge detection using prewitt operator without using edge function

this codes present SVM

广义S变换，用于时频分析，是S的改进形式(Generalized S-transform, used in time-frequency analysis, is an improved form of S)

说明：  一个简单地一阶RC电路，观测值得测量，并通过安时积分法得到荷电状态(A simple first-order RC circuit. The observation is worth measuring and the state of charge is obtained by the time integral method.)