本文關(guān)鍵詞： 微橋結(jié)構(gòu)太赫茲探測器 測試系統(tǒng) 參數(shù)測試 成像顯示 自動化　出處：《電子科技大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：太赫茲波時指頻率在0.1-10THz之間的電磁波,近年來,由于太赫茲輻射源的研發(fā),太赫茲技術(shù)越來越受到人們的關(guān)注。結(jié)合非制冷紅外焦平面探測器研制技術(shù),微橋結(jié)構(gòu)的太赫茲探測器的制備也越來越受到國內(nèi)外重要研究機構(gòu)的重視�；诖�,本文主要的工作為研制一套能夠進(jìn)行太赫茲焦平面探測器性能參數(shù)的測試和圖像顯示的測試系統(tǒng)。對于太赫茲探測器測試系統(tǒng),本論文主要從硬件和軟件兩個部分進(jìn)行設(shè)計。硬件部分主要為探測器提供一個良好的工作環(huán)境,高速的數(shù)據(jù)傳輸方式;軟件部分主要為系統(tǒng)提供簡潔明了的軟件框架設(shè)計,高效的算法設(shè)計。從這兩個方面保證測試系統(tǒng)能夠進(jìn)行大面陣太赫茲焦平面探測器的性能參數(shù)測試以及實時的太赫茲探測器圖像顯示功能。具體實現(xiàn)上,本文進(jìn)行的主要工作如下,首先分析了微橋結(jié)構(gòu)太赫茲探測器的工作原理,太赫茲輻射源的工作原理,參照紅外探測器測試參數(shù)以及太赫茲單元測試方法,提出了太赫茲探測器的性能參數(shù)測試原理和方法,包括的主要參數(shù)有響應(yīng)率、噪聲等效功率、響應(yīng)的非均勻性和盲元率。參照性能參數(shù)的測試需求,提出了測試系統(tǒng)的設(shè)計方案。系統(tǒng)設(shè)計方案包括太赫茲探測器測試系統(tǒng)的硬件設(shè)計,時序驅(qū)動電路、數(shù)模轉(zhuǎn)換電路、偏置電壓電路、數(shù)據(jù)采集電路;PCIE(高速總線接口)驅(qū)動設(shè)計,包括PCIE驅(qū)動設(shè)計、驅(qū)動程序與應(yīng)用程序交互、FPGA(可編程門陣列)與計算機間進(jìn)行數(shù)據(jù)采集;太赫茲探測器性能參數(shù)計算的軟件設(shè)計;太赫茲圖像校正與增強,包括非均勻性校正、盲元補償、直方圖均衡化;自動化操作,包括自動調(diào)節(jié)偏置電壓,測試系統(tǒng)數(shù)據(jù)、報表的記錄、保存與導(dǎo)出。太赫茲探測器測試系統(tǒng)能夠穩(wěn)定工作,滿足焦平面陣列參數(shù)測試的要求,同時實時成像功能也能夠滿足系統(tǒng)要求。本系統(tǒng)還具備操作簡單、系統(tǒng)穩(wěn)定、自動化功能高、可擴展性強等特點。
[Abstract]:Terahertz time refers to electromagnetic waves with frequencies between 0.1-10THz. In recent years, due to the development of terahertz radiation sources. The terahertz technology has attracted more and more attention. The uncooled infrared focal plane detector has been developed. The fabrication of micro-bridge terahertz detectors has been paid more and more attention by domestic and foreign important research institutions. The main work of this paper is to develop a test system which can test the performance parameters of THz focal plane detector and display the image. This paper mainly designs from two parts: hardware and software. The hardware provides a good working environment and high speed data transmission mode for the detector. The software part mainly provides the concise software frame design for the system. Efficient algorithm design. From these two aspects to ensure that the test system can test the performance parameters of large array terahertz focal plane detector and the real-time image display function of terahertz detector. The main work of this paper is as follows: firstly, the principle of the micro-bridge terahertz detector and the terahertz radiation source are analyzed. The parameters of the infrared detector and the terahertz unit test method are referred to. The principle and method of testing performance parameters of terahertz detector are presented, including the main parameters such as response rate, noise equivalent power, nonuniformity of response and blind element rate. The design scheme of the test system includes the hardware design of terahertz detector test system, timing drive circuit, digital-analog conversion circuit, bias voltage circuit and data acquisition circuit. The design of high speed bus interface driver includes the design of PCIE driver, and the data acquisition between the driver and the application program, FPGA (Programmable Gate Array) and the computer. Software design for calculating the performance parameters of terahertz detector; Terahertz image correction and enhancement, including nonuniformity correction, blind element compensation, histogram equalization; Automatic operation, including automatic adjustment of bias voltage, test system data, record of report form, save and export. Terahertz detector test system can work stably and meet the requirements of focal plane array parameter testing. At the same time, the real-time imaging function can also meet the requirements of the system. The system also has the characteristics of simple operation, stable system, high automation function, strong scalability and so on.
【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TP274;O441.4

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相關(guān)期刊論文 前1條

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本文編號：1470595