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说明：  code of pendulum using pdi controller

pocket cloud data storage and sharing software

RS-485双机通信 RS-485双机通信-(experimental three RS-485-machine communication experiment three RS-485- Communication experiment three RS-485-machine comm unication)

对控制装置及仪表的控制系统进行仿真，并给出性能分析(Control devices and instrumentation control system simulation and performance analysis is given )

There is a matlab cod that Plotting outcomes of Van der Pol oscillator for µ varying bewteen 0 and 2. this is a model in dynamical system.

single phase active harmonic filter

本程序是关于卫星上下变频的简单的实现算法，首先产生双边带调制信号，与收本振混频后，通过低通滤波器完成下变频。再与发本振混频，通过高通滤波器后完成上变频(This program is a simple algorithm on the satellite and down-conversion, the first double-sideband modulation signal generated, after the close of the oscillator mixer, low-pass filter complete the conversion. Again and send the local oscillator mixer, followed by the completion of the high-pass filter frequency)

GUI系统尽心Radon变化，所谓Radon变换，就是将原始图像变换为它在各个角度的投影表示。 (Radon dedicated GUI system changes, the so-called Radon transform, the original image is converted to its projection showing all angles.)

黄金分割法（0.618）程序，以及进退法选择优化区间(Golden section method (0.618) procedures)

基于IP-IQ瞬时功率理论的APF仿真波形图，三相三线，如果需要还可以将三相四线传上来供大家学习交流。(Based on the IP-IQ instantaneous power theory of APF simulation waveform, phase three-wire, if necessary, can be three-phase four-wire pass up for the Learning Exchange.)