reference modulation

The system adopts modulation, demodulation, and bisynchronous measuring to signal and reference channels in order to guarantee its stability and precision requirements.

系统通过采用调制、解调、窄带滤波，信号支路和参考支路双通道相比测量等技术措施，来保证系统的高稳定性和高分辨率。

In the third chapter, the author uses for reference the concept in the occurrence subject, that are assimilation and modulation, to explain the generation and evolvement of the knowledge structure of the Chinese classical dancing;

在第三章中，笔者借鉴了发生学中的概念&同化与调节来阐述中国古典舞知识结构的生成与演化；

A new space vector modulation method based on reference voltage decomposition for multilevel VSI

基于参考电压分解的新型多电平逆变器空间矢量调制方法

On the other hand, the mixed modulation algorithm uses the five-segment modulation algorithm and the characteristic quadrangle to approximate the reference vector which can reduce the switching frequency. Finally, a three-cell seven-level inverters experiment platform is set up.

另一方面，混合调制算法利用特征四边形法和五段算法逼近参考矢量减少了开关切换频率。

The reference vector corresponding to basic vector and its role time under linear modulation mode is decided. As well as redundant switches are optimization selected by extreme value method to reduce the switching frequency.

确定了线性调制模式下参考矢量所对应的基本矢量及其作用时间；并提出了极值法对冗余开关状态进行优化选择以降低开关频率。