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微软的一道题目，有12个外表一模一样的小球，其中有一个的质量和其他11个球不一样（11个球的质量完全相同），而且该球不知道是轻点还是重点。现在给你一个天平（无砝码），只有3次测量机会，请你找出该球。球号从a到l(小写)(Microsoft' s one topic, there are 12 look exactly the same ball, one of which the quality and not the same as the other 11 balls (11 balls of the same quality), and that the ball does not know or focus of light spots. Now to give you a balance (no weight), only three measurements chance, would you please identify the ball. Ball number from a to l (lowercase))

移动ad hoc网络路由协议仿真：包括AODV及DSR两种按需路由协议路由选择对比结果，随机节点分布状态下的路由决策机制 无线通信网络MAC层802.11协议仿真(Mobile ad hoc networks on demand routing protocols: including AODV and DSR schemes path selection strategy under random mobile node deployment wireless networks MAC layer 802.11 protocol)

LDPC的完整c语言开发源程序代码，可以直接运行，没有错误，里面含有文件： construct_matrix.cpp decode.cpp encode.cpp Gaussian_channel.cpp generating_matrix.cpp get_matrix.cpp LDPC_main.c(LDPC complete c language source code, can be directly run, no errors, which contains documents: construct_matrix.cppdecode.cppencode.cppGaussian_channel.cppgenerating_matrix.cppget_matrix.cppLDPC_main.c)

全数字调制解调器MATLAB仿真真源代码，超级实用，下载即可使用。 (All-digital modem MATLAB simulation is really the source code, super-practical, can be used to download.)

最小二乘模型参数离线辨识，解决这类问题的优化计算，可以提高速度，节省时间(Least squares model parameters off-line identification, to resolve such issues to optimize the calculation, you can improve speed, to save time)

东南大学短学期MATLAB课程PPT，帮助你轻松学习MATLAB。(MATLAB short-term courses, Southeast University, PPT, to help you easily learn MATLAB.)

说明：  用matlab的mesh命令画出所要求解的大量数据文件的图形(The mesh command using matlab draw large amounts of data required for solution of graphic files)

包括各种matlab无线传感器定位算法，里面包括说明文档(Including various matlab wireless sensor positioning algorithm, which includes documentation)

可控整流仿真模型，PWM整流器，三相可控整流(Controlled rectifier simulation model, PWM rectifier, three-phase controlled rectifier)

control of induction motor by generating pwm pulses