velocity focusing

基本解釋

One difficulty with direct methods is that the designer spends a great deal of time focusing on the velocity distribution; the geometry is secondary.
一個(gè)直接的方法就是難度設(shè)計(jì)者花費(fèi)大量的時(shí)間專注於速度分佈；幾何爲(wèi)輔。
Such as how to select focus functions and focus windows, how to perform feedback control, and how to improve the auto-focusing velocity etc. , are far from completely solved.
在如何選擇對(duì)焦評(píng)價(jià)函數(shù)和對(duì)焦區(qū)域、如何進(jìn)行反餽控制和如何提高對(duì)焦速度等方麪，還有諸多問(wèn)題有待解決。
The results showed that the effect of group velocity dispersion(GVD) on the pulse with large chip was slight and the effect of spectral width on the self-focusing properties could be ignored.
研究結(jié)果表明，群速度色散（GVD）對(duì)大啁啾脈沖的影響很小，譜寬對(duì)自聚集的影響可以忽略。