This paper presents the input voltage shape reconstructed by FFT method from the distorted output shape and unit step response of impulse high voltage measuring system.
本文介绍了一种根据冲击测量系统的方波响应和输出波形，利用FFT算法重建输入波形的方法。
A new control method of multiunit inverter is described, which determines the triggering pulse for each unit to obtain the sine wave output through multiple-phase shifting superimposition principle.
研究了多重化逆变器的一种控制方法，采用逆推的方法确定各单元的触发脉冲，通过多重移相叠加原理得到正弦波输出。
Unit price method is the fundamental one for calculating the output value of a construction project.
单价法是计算建筑工程产值的基本方法。
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