正弦波调制 meaning in English

sine wave modulation
sine-wave modulation
sinusoidal modulation

Firstly , according to the detailed analysis on the mathematical model of pmsm , the principle of field oriented control ( foc ) is illustrated . spwm and svpwm are analyzed and contrasted in detail too , and the digital realization techniques based on dsp are given
本文首先在分析永磁同步电机数学模型的基础上，阐述了永磁同步电机矢量控制基本原理；对正弦波调制技术( spwm )和空间矢量调制技术( svpwm )两种脉宽调制策略进行了详细的分析和对比研究，给出了基于dsp的数字化实现方法。