红外与激光工程
紅外與激光工程
홍외여격광공정
INFRARED AND LASER ENGINEERING
2013年
8期
2238-2243
,共6页
孟鑫%李建欣%李苏宁%朱日宏
孟鑫%李建訢%李囌寧%硃日宏
맹흠%리건흔%리소저%주일굉
光谱学%高光谱成像%像面干涉
光譜學%高光譜成像%像麵榦涉
광보학%고광보성상%상면간섭
spectrocopy%hyperspectral imaging%image plane interferometric
与传统的干涉成像光谱技术相比,像面干涉成像光谱技术具有高光通量、高光谱分辨率、高目标分辨率等优点。在介绍像面干涉成像光谱技术的基本原理基础上,提出了通过推扫横向剪切分束器对目标进行探测的方法,省去了传统推扫方法中提取物点干涉信息时的图像配准过程。研究了信息处理中去直流项、切趾等预处理问题,分析了相位误差校正方法及各种方法的优缺点。搭建Sagnac型像面干涉成像光谱实验装置进行了光谱重构实验,复原了被测光源的光谱曲线,并复原了探测目标在各个谱段的光谱图像。
與傳統的榦涉成像光譜技術相比,像麵榦涉成像光譜技術具有高光通量、高光譜分辨率、高目標分辨率等優點。在介紹像麵榦涉成像光譜技術的基本原理基礎上,提齣瞭通過推掃橫嚮剪切分束器對目標進行探測的方法,省去瞭傳統推掃方法中提取物點榦涉信息時的圖像配準過程。研究瞭信息處理中去直流項、切趾等預處理問題,分析瞭相位誤差校正方法及各種方法的優缺點。搭建Sagnac型像麵榦涉成像光譜實驗裝置進行瞭光譜重構實驗,複原瞭被測光源的光譜麯線,併複原瞭探測目標在各箇譜段的光譜圖像。
여전통적간섭성상광보기술상비,상면간섭성상광보기술구유고광통량、고광보분변솔、고목표분변솔등우점。재개소상면간섭성상광보기술적기본원리기출상,제출료통과추소횡향전절분속기대목표진행탐측적방법,성거료전통추소방법중제취물점간섭신식시적도상배준과정。연구료신식처리중거직류항、절지등예처리문제,분석료상위오차교정방법급각충방법적우결점。탑건Sagnac형상면간섭성상광보실험장치진행료광보중구실험,복원료피측광원적광보곡선,병복원료탐측목표재각개보단적광보도상。
A series of interferometric images were acquired by pushbroom in the image plane interferometric hyperspectral technology, where the fringe pattern of every point was extracted and the spectrum was reconstructed by Fourier transform. Compared with the traditional interference imaging spectrometer, it had the advantages of high flux, high spectral resolution, high target resolution and so on. The basic principle of imaging plane interference spectrometer was introduced and a new push-broom method was presented. The petreatment such as apodization and DC removal are researched. Then the phase error correction methods were discussed, so as their advantages and disadvantages. A Sagnac image plane interference spectrometer was set up, and the spectral curve of the measured light was got.