1) Frequency-offset estimation
周期扩展
2) anti-periodic extension method
反周期扩展法
1.
Absorbing boundary condition issolved by taking the anti-periodic extension method (Takashi) or its combinationwith attenuate absorbing boundary condition.
吸收边界条件采用Takashi提出的反周期扩展法或是与衰减型吸收边界条件相结合的方法。
3) Synchronization cycle expansion
同步周期扩展
4) expansion business-cycle
经济周期的扩展
5) extend-period quasi-resonant
扩展周期准谐振
1.
According to the design ideology of softswitched extended-period quasi-resonant two-level Boost converter circuit,a soft switching cell of extend-period quasi-resonant had been added to the three-level Boost converter for power factor correction(PFC) applications,then a fully and simple soft-switched extended-period quasi-resonant three-level Boost converter for PFC circuit can be obtained.
参照两电平Boost电路中的扩展周期准谐振软开关电路的设计思想,将原有三电平Boost功率因数校正(powerfactor correction,PFC)电路结合扩展周期准谐振电路单元,给出一种简化型的三电平Boost PFC扩展周期准谐振软开关电路。
6) extending of frequency spectrum period
频域延拓周期扩展
补充资料：反周期
反周期 Counter-Cyclical
定义：
经济周期中产出，收入和就业等经济变量与经济波动状况成相反方向的变动，表现为这些变量在衰退中上升而在复苏中下降。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。