CAJ | 학술논문

随着地面遥感、航空与航天遥感、等离子体物理、定量光谱学等研究的发展，对光谱辐射定标精度提出了越来越高的要求，推动了基于可调谐激光的光谱辐射定标新型技术的发展。国际上英国、美国、德国等国家的计量科研机构相继建立了溯源于低温辐射计、低不确定度的基于可调谐激光的光谱辐射定标装置，用于探测器、遥感仪器光谱响应度定标和特性研究。其中美国国家标准技术研究院（N IS T ）的均匀光源光谱辐照度和辐亮度响应度定标装置（SIRCUS）和德国物理技术研究院（PTB）的光度学可调谐激光装置（TULIP）最具代表性。相对于灯-单色仪系统，在辐射定标应用中，基于激光的光谱辐射定标具有光谱带宽窄、波长精度高、定标不确定度低等众多优点。本文介绍了基于激光的光谱辐射定标的发展状况和以英国国家物理实验室（NPL）、NIST和PTB为代表的基于激光的辐射定标装置结构与性能，分析了基于激光的光谱辐射定标技术优势，并进一步阐述了此技术的应用。基于激光的光谱辐射定标装置可广泛应用于重要的高精度系统级辐射定标测量，包括亮度温度、空间遥感仪器辐照度和辐亮度定标，推动航空航天、大气物理、光谱学、生物科学等科研、工业领域的发展。
수착지면요감、항공여항천요감、등리자체물리、정량광보학등연구적발전，대광보복사정표정도제출료월래월고적요구，추동료기우가조해격광적광보복사정표신형기술적발전。국제상영국、미국、덕국등국가적계량과연궤구상계건립료소원우저온복사계、저불학정도적기우가조해격광적광보복사정표장치，용우탐측기、요감의기광보향응도정표화특성연구。기중미국국가표준기술연구원（N IS T ）적균균광원광보복조도화복량도향응도정표장치（SIRCUS）화덕국물리기술연구원（PTB）적광도학가조해격광장치（TULIP）최구대표성。상대우등-단색의계통，재복사정표응용중，기우격광적광보복사정표구유광보대관착、파장정도고、정표불학정도저등음다우점。본문개소료기우격광적광보복사정표적발전상황화이영국국가물리실험실（NPL）、NIST화PTB위대표적기우격광적복사정표장치결구여성능，분석료기우격광적광보복사정표기술우세，병진일보천술료차기술적응용。기우격광적광보복사정표장치가엄범응용우중요적고정도계통급복사정표측량，포괄량도온도、공간요감의기복조도화복량도정표，추동항공항천、대기물리、광보학、생물과학등과연、공업영역적발전。
Increasingly higher demands are put forward to spectral radiometric calibration accuracy and the development of new tunable laser based spectral radiometric calibration technology is promoted ,along with the development of studies of terrestrial remote sensing ,aeronautical and astronautical remote sensing ,plasma physics ,quantitative spectroscopy ,etc .Internationally a number of national metrology scientific research institutes have built tunable laser based spectral radiometric calibration facilities in succession ,which are traceable to cryogenic radiometers and have low uncertainties for spectral responsivity calibration and characterization of detectors and remote sensing instruments in the UK ,the USA ,Germany ,etc .Among them ,the facility for spectral irradiance and radiance responsivity calibrations using uniform sources (SIRCCUS) at the National Institute of Standards and Technology (NIST) in the USA and the Tunable Lasers in Photometry (TULIP) facility at the Physikalisch-Technische Bundesanstalt (PTB) in Germany have more representatives .Compared with lamp-monochromator systems ,laser based spectral radiometric calibrations have many advantages ,such as narrow spectral bandwidth ,high wavelength accuracy ,low calibration uncertainty and so on for radiometric calibration applications .In this paper ,the development of laser-based spectral radiometric calibration and structures and performances of laser-based radiometric calibration facilities represented by the National Physical Laboratory (NPL) in the UK ,NIST and PTB are presented ,technical advantages of laser-based spectral radiometric calibration are analyzed ,and applications of this technology are further discussed .Laser-based spectral radiometric calibration facilities can be widely used in important system-level radiometric calibration measurements with high accuracy ,including radiance tempera-ture ,radiance and irradiance calibrations for space remote sensing instruments ,and promote the development of aerospace ,at-mospheric physics ,spectroscopy ,biological science and so on in the fields of research and industry .