beat frequency

基本解释

Explained the modulated phenomena in output pulse by use of horizontal mode beat-frequency.
实验上证明利用单模双包层光纤，在特定泵浦条件下获得较稳定的自脉冲输出。
The theory of Quasi-periodic Oscillation (QPO) in Low-mass X-ray Binaries (LMXB) is discussed in this paper. Beat-Frequency Models (BFM), including development, are presented in detail.
本文简略地叙述了低质量X射线双星中准周期振荡（QPO）现象的理论解释，对其中的差频模型（BFM）和它的一些发展作了较为详细的介绍。
By means of the relations between frequency variances of oscillators and their beat-frequency variances, we can determine the frequency variances of oscillators without frequency standard.
利用振荡器频率的方差和它们的拍频的方差之间的关系，可以决定某一振荡器频率的方差。