随机二相码调相PD（脉冲多普勒）引信，是一种较为新颖的噪声调制引信体制。

The random binary phase code phasing PD fuze is a novel modulated system of noise.

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分析了传统的PWM_ON调制方式对无刷直流电动机在非换相期间由于截止相的反并联二极管续流而导致转矩脉动的原因。

The torque ripple caused by diode freewheeling of the inactive phase during non-commutation state of PM brushless DC motor(BLDCM)when using the PWM_ON type of pulse width modulation was analyzed.

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研究了二相逆变器-异步电动机系统的空间矢量脉宽调制(SVPWM)控制技术。

A novelty space vector pulse width modulation (SVPWM) technique for the two-phase inverter-fed asynchronous motors system is proposed, which can be widely used in the low or middle power level field.

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