本文選題：時(shí)間分辨熒光光譜　切入點(diǎn)：油熒光分類　出處：《光學(xué)精密工程》2017年04期

【摘要】：激光誘導(dǎo)熒光技術(shù)可廣泛應(yīng)用于油污染的監(jiān)測(cè)中,然而普通的油熒光光譜技術(shù)只能實(shí)現(xiàn)油污染監(jiān)測(cè)的粗分類,無法區(qū)分原油與燃料油的熒光特征。本文基于主成分分析方法(PCA)的時(shí)間分辨油熒光分類方法,實(shí)驗(yàn)測(cè)量了20種油樣本的時(shí)間分辨熒光光譜特征,給出了對(duì)應(yīng)的熒光壽命和時(shí)間分辨油熒光光譜的時(shí)序特征。在此基礎(chǔ)上,利用前三個(gè)主成分構(gòu)成的三維特征矢量空間,通過分析不同采集時(shí)刻下油樣本矢量間相關(guān)距離的變化,對(duì)油樣本的時(shí)間分辨熒光光譜進(jìn)行聚類分析。為了體現(xiàn)油熒光變化的時(shí)序性,引入矢量距離的離散度參量,提出基于PCA進(jìn)行時(shí)間分辨油熒光光譜分析的優(yōu)化方法。實(shí)驗(yàn)結(jié)果表明,基于時(shí)間分辨油熒光光譜識(shí)別可實(shí)現(xiàn)原油與燃料油的光譜時(shí)序特征區(qū)分,具備良好的油熒光分類效果。
[Abstract]:Laser induced fluorescence technology can be widely used in oil pollution monitoring, but ordinary oil fluorescence spectroscopy can only realize the crude classification of oil pollution monitoring, and can not distinguish the fluorescence characteristics between crude oil and fuel oil.Based on the time-resolved oil fluorescence classification method based on principal component analysis (PCA), the time-resolved fluorescence spectrum characteristics of 20 kinds of oil samples were measured experimentally, and the corresponding fluorescence lifetime and time-resolved oil fluorescence spectrum timing characteristics were given.On this basis, the time-resolved fluorescence spectra of oil samples were analyzed by using the three dimensional feature vector space of the first three principal components, and by analyzing the variation of the correlation distance between the oil samples at different sampling times.In order to reflect the timing of oil fluorescence variation, an optimized method of time-resolved oil fluorescence spectrum analysis based on PCA was proposed by introducing the dispersion parameter of vector distance.The experimental results show that the time-resolved oil fluorescence spectrum recognition can realize the spectral time series distinction between crude oil and fuel oil, and has a good oil fluorescence classification effect.
【作者單位】： 中國海洋大學(xué)信息科學(xué)與工程學(xué)院;國家海洋局第一海洋研究所;中國科學(xué)院海洋研究所;
【基金】：國家自然科學(xué)基金資助項(xiàng)目(No.61505221) 國家海洋局國際海洋合作與履約項(xiàng)目(No.QY0516014) 中央級(jí)公益性科研院所基本科研業(yè)務(wù)費(fèi)專項(xiàng)資金資助項(xiàng)目(No.0215G20)
【分類號(hào)】：X834;X55
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本文編號(hào)：1726696