本文關(guān)鍵詞：EMCCD成像性能參數(shù)測試方法研究　出處：《南京理工大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： EMCCD 噪聲參數(shù) 非均勻性 動(dòng)態(tài)范圍 分離測試 不確定度分析

【摘要】：作為一種新型的全固態(tài)微光成像器件,EMCCD具有體積小、壽命長、光電轉(zhuǎn)換效率高等優(yōu)點(diǎn)。它的出現(xiàn)大大提高了微光成像器件的性能,甚至可以進(jìn)行單光子的檢測,在光子技術(shù)成像領(lǐng)域具有廣闊的發(fā)展空間。但是,與普通CCD相比,EMCCD所采集的微光圖像對比度較低、動(dòng)態(tài)范圍較小,并且伴隨各種噪聲的干擾,使EMCCD成像系統(tǒng)所采集的圖像信噪比下降,圖像的分辨率也受到較大影響。然而,EMCCD相機(jī)生產(chǎn)廠商提供的產(chǎn)品手冊是針對電視廣播的工業(yè)標(biāo)準(zhǔn),缺乏科學(xué)成像應(yīng)用所需要的指標(biāo)。同時(shí),設(shè)計(jì)和制造EMCCD也需要經(jīng)常性地測試EMCCD'性能參數(shù)。因此,精確測試EMCCD性能參數(shù)具有十分重要的意義。本文在研究EMCCD的工作原理的基礎(chǔ)上,對EMCCD各成像性能參數(shù)進(jìn)行了詳細(xì)的討論。依據(jù)EMCCD工作原理及其性能參數(shù)特點(diǎn),模擬了EMCCD工作環(huán)境,設(shè)計(jì)并搭建了EMCCD成像性能參數(shù)測試系統(tǒng),實(shí)現(xiàn)了各個(gè)成像性能參數(shù)及噪聲的分離測試,包括讀出噪聲、暗電流、噪聲因子、時(shí)鐘感生電荷噪聲、非均勻性、滿阱和動(dòng)態(tài)范圍。測試結(jié)果表明,本文測參數(shù)測試值與相機(jī)生產(chǎn)商提供的技術(shù)手冊基本一致。為了保證測試結(jié)果的完整性,本文依據(jù)測量不確定度理論,對測試結(jié)果進(jìn)行了不確定度分析。不確定度分析結(jié)果在2%左右,表明EMCCD相機(jī)工作狀態(tài)良好,本文設(shè)計(jì)的測試方案切實(shí)可行,搭建的測試系統(tǒng)基本符合設(shè)計(jì)要求。
[Abstract]:As a new all-solid-state low-light imaging device, EMCCD has the advantages of small size, long life, high photoelectric conversion efficiency and so on. It can even be detected by single photon, which has a wide development space in the field of photonic imaging. However, compared with ordinary CCD, the contrast of low light level image collected by CCD is lower and the dynamic range is smaller. And with the interference of various noises, the SNR of the image collected by the EMCCD imaging system is reduced, and the resolution of the image is also greatly affected. The product manual provided by the EMCCD camera manufacturer is an industrial standard for television broadcasting and lacks the indicators needed for scientific imaging applications. Designing and manufacturing EMCCD also requires regular testing of the EMC EMCCD performance parameters. It is very important to accurately test the performance parameters of EMCCD. This paper studies the working principle of EMCCD. The imaging performance parameters of EMCCD are discussed in detail. According to the working principle of EMCCD and the characteristics of its performance parameters, the working environment of EMCCD is simulated. The EMCCD imaging performance parameter testing system is designed and built, and the separation test of each imaging performance parameter and noise is realized, including readout noise, dark current, noise factor, clock induced charge noise. Non-uniformity, full well and dynamic range. The test results show that the measured parameters are in good agreement with the technical manual provided by camera manufacturer in order to ensure the integrity of the test results. Based on the uncertainty theory of measurement, the uncertainty analysis of the test results is carried out. The uncertainty analysis results are about 2%, which indicates that the EMCCD camera is in good working condition. The test scheme designed in this paper is feasible, and the test system is basically in line with the design requirements.
【學(xué)位授予單位】：南京理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TN386.5

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本文編號：1417090