dirdetect

老师布置得题目，比较简单，但很实用，用matlab模拟小圆在大圆上滚动的轨迹。(topic, relatively simple, but very useful, using Matlab simulation knolls in the great circle rolling on the track.)

信号与系统课程的Matlab编程指导，用于本科生教学和科研。(Signal and System Matlab Program)

MATLAB构建的三段比幅式距离保护模型 内涵保护模块 S函数模块 (MATLAB built three-spoke distance protection model content protection module S function modules)

基于神经网络的变压器故障检测matlab实现(Transformer fault detection based on neural network matlab achieve)

减摇鳍是船舶减摇行之有效的方法，被广泛的应用。本文具体阐述了应 用80C196KC减摇鳍控制器设计的硬件和软件的设计方法。本文采用变参数 PID控制方法，使得减摇鳍控制器能够更好的适应随机变化的海况，使减摇 效果更加理想。减摇鳍控制器的设计主要包括:PID控制器设计、航速调节 器设计、浪级调节器设计。根据不同航速、浪级调节减摇鳍控制器的输出， 使得减摇鳍能够平稳、可靠的工作。减摇鳍控制器的设计具有实际应用的意 义。( ADissertationfortheDegreeofD.Eng TheDesignofControllerfortheFin StabilizerBasedon80C196KC Candidate:MaLihua SuPervisor:Prof.JinHongzhang AeademieDegreeAPPliedfor:MasterofEngineering SPeeiality:Meehanieal&EleetronieEngineering DateofSubmission)

Code ardruino NFC rc522 with buzzer

SVPWM是近年发展的一种比较新颖的控制方法，是由三相功率逆变器的六个功率开关元件组成的特定开关模式产生的脉宽调制波，能够使输出电流波形尽可能接近于理想的正弦波形。空间电压矢量PWM与传统的正弦PWM不同，它是从三相输出电压的整体效果出发，着眼于如何使电机获得理想圆形磁链轨迹。SVPWM技术与SPWM相比较，绕组电流波形的谐波成分小，使得电机转矩脉动降低，旋转磁场更逼近圆形，而且使直流母线电压的利用率有了很大提高，且更易于实现数字化。(SVPWM is a novel control method developed in recent years. It is a pulse width modulation wave generated by a specific switching mode consisting of six power switching elements of three-phase power inverters, which can make the output current waveform as close as possible to the ideal sinusoidal waveform. Space voltage vector PWM is different from traditional sinusoidal PWM. It is based on the overall effect of three-phase output voltage, focusing on how to obtain the ideal circular flux trajectory of the motor. Compared with SPWM, the harmonic component of winding current waveform is smaller, which reduces the torque ripple of motor, makes the rotating magnetic field more close to the circle, and improves the utilization ratio of DC bus voltage greatly, and makes it easier to realize digitization.)

ini itu ya begini ada ini iya begitulah ada ada aja lu

MATLABlearn MATLABlearn

说明：  利用BP算法进行模型的训练和测试 相对于回归算法中，ANN算法有独到的好处(ANN has its advantage in regressive algrithm)