CPPPrimer

永磁同步电动机调速系统由pmsm月吸逆变器、永磁同步电动机和机械负载三部分组成,每个部分都具有非线性特性和参数的不确定性。因为PWM逆变器死区的存在,在低速以及调制频率很高时,死区特性将会导致逆变器输出电压包含很大的谐波分量,使得电机转矩发生很大的 脉动,甚至导致系统的不稳定。有些学者采用变结构控制降低死区的影响,由于变结构控制本身具有抖振现象,这使得所设计的控制器在到达滑模平面之前很容易激起系统的未建模动态,导致系统无法克服逆变器死区的影响。 (A PMSM drive sysetm Consisst of ade-ac inverter,PMSM and sorne meehan iealload.All hteree eom Ponenst of hte syset maerhca racterizedb ymodel swhich aernon linear and eonati nullkllown Parameetrs. )

反垃圾邮件技术LSA和MD5，对研究反垃圾邮件技术的朋友有所帮助(Anti-spam technology LSA and MD5, the study of anti-spam technology help a friend)

ansys模拟桥梁受力分析，在桥上有车行驶过时计算出桥梁不同部位受力状况及挠度变化值。(ansys stress analysis simulation bridge, a car traveling on the bridge obsolete bridges in different parts of the calculated force status and changes in the value of deflection.)

数字信号处理 理论算法与实现 胡广书 第二版(Digital signal processing algorithms and implementation theory HU-book second edition)

Knuth不僅僅是傑出的programmer，同時也是世界聞名的數學家和演算法的專家。他的經典巨著The Art of Computer Programming裡頭寫的是他畢生研究演算法和程式設計的精華(Knuth is not only an outstanding programmer, but also world-renowned mathematicians and experts algorithm. His classic masterpiece, The Art of Computer Programming is written inside his life-long study of algorithms and the essence of programming)

farsightwince入门教程,比较适合初学者(Tutorial farsightwince more suitable for beginners)

Linux.Kernel.3rd.Edition 欢迎大家踊跃下载 祝福大家(Linux.Kernel.3rd.Edition enthusiastically welcomed everyone to download bless everyone)

说明：  TDOA通过四站定位，确定三个辅站从而计算出主站坐标(This code discrabes the tdoa about math)

使用wifi指纹以及参考点信号强弱实现定位安卓手机精确定位(Fingerprint and the reference point using wifi signal strength to achieve precise positioning positioning Android phones)

说明：  iot security challenge