BLDC_PI_controller

k-means algorithm clustering

战术武器子惯性导航系统与机载主惯性导航系统的空中动基座传递对准(Tactical weapons sub-inertial navigation system and the airborne inertial navigation system air moving base transfer alignment)

说明：  利用MATLAB语言编写的直流电动机开环启动和闭环启动特性分析(The use of MATLAB language open-loop DC motor start-up and characteristics of the closed-loop start)

matlab命令大全，供初学者使用，收集了大部分有用的命令(matlab command Daquan, for beginners, collected most of the useful commands)

对指数式衰减的加油噪声的信号(诱发响应)提取,噪声越小,提取出的信号越接近原信号(On the exponential decay of the refueling noise signal (evoked response) extraction, the smaller the noise, to extract the signal the closer the original signal)

相空间重构,以及绘制相空间图. 程序并不复杂,但运行效果良好.(phase reconstitution, and phase graphic mapping.)

A Discrete 3-Phase ProgrammableSource block is used to generate a 1 pu, 15 degrees positive sequence voltage. At t = 0.05 s the positive sequence voltage is increased to 1.5 pu. At t = 0.1 s an unbalance is introduced by adding a 0.3 pu negative sequence component with a phase of -30 degrees. The magnitude and phase of the positive-sequence component is evaluated in two diiferent ways: 1) Sequence calculation of phasors using Fourier analysis and 2) abc to dq0 transformation. Math Function and Trigonometric Function blocks are used to evaluate the magnitude and phase of the positive sequence from the d and q components: V1 = sqrt(Vd^2 + Vq^2) , Phi1 = atan(Vq/Vd))

JPDA的matlab程序 可以使用 效果不错(JPDA matlab )

Sigma_delta调制器的matlab模型和完整代码，可通过仿真观察输入输出信号波形以及输出的频谱，最后还说明了如何计算信噪比(Sigma_delta modulator of matlab models and complete code, can observe the simulation input/output signal waveform and the output spectrum, finally also illustrates how to calculate the SNR)

生成环形有限元网格，可改变网格系数程度，可用于达特茅斯NIRFAST软件包。(gengerates ring-shape finite element mesh with variable mesh density,applicable to NIRFAST by Dartmouth.)