coherence distance

基本解釋

The spatial coherence of the beam is not relevant to its initial coherence for longer propagation distance.
長(zhǎng)距離傳輸後，光束空間相乾性與光束初始相乾長(zhǎng)度不再有關(guān)。
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Various parameters insisting of spectrum of source, imaging distance and spatial coherence can influence visibility of fringes. Their referential values were presented in this paper.
條紋對(duì)比度受光源譜分佈、成像距離、光源空間相乾性這些因素的影響，對(duì)蓡數(shù)的研究給出了它們的蓡考值。
As the PN-code high performance of long period and the coherence, the very long distance and high precision ranging can be reached at the same time. Multi-target TT&C can be reached by CDMA of PN.
由於偽隨機(jī)碼固有的測(cè)距能力——其長(zhǎng)周期和互相關(guān)特性，使得在測(cè)距距離和精度方麪可以同時(shí)提高，採(cǎi)用碼分多址技術(shù)可以實(shí)現(xiàn)對(duì)多個(gè)目標(biāo)同時(shí)進(jìn)行測(cè)控。