subharmonic

The error estimation of the quasi-synchronous sampling harmonics anal-ysis and the method used for measuring the subharmonics of periodic signalsare also discussed.

文测量误差作了分析和估计,并介绍了测量分数次谐波的一种方法。

Resonance of surface waves of a given length is shown to be possible over bed waves with synchronous , subharmonic, or ultraharmonic wave lengths.

针定长入射流，得到一自治动力系统，给出它的次谐波共振分叉图。