CAJ | 학술논문

空间外差干涉光谱技术是近年发展起来的新型静态超分辨光谱分光技术，仪器线型函数是其基本性能参数之一，代表了仪器的光谱分辨能力，需要精确表征。在分析仪器线型函数影响因素（切趾、有效视场角与离轴像元效应）以及测量方法与测量光源等特殊性要求基础上，提出了一种可调波长单色面光源的全新测量方法，并利用可调谐激光器与消散斑积分球等设备搭建了测量实验装置。在仪器线型函数测量实验中，通过选取光谱范围内的典型谱段进行高光谱（0.1 nm步长）扫描，经过干涉数据误差修正、光谱复原以及坐标归一化等数据处理过程，获取了仪器线型函数的能量分布形式。此外，利用全光谱范围内扫描的干涉数据，得到仪器线型函数的全峰半宽随波长的变化规律曲线。最后，将本方法获取的实测仪器线型函数与模拟光谱（LBL计算）进行卷积获取理论谱，并与地基探测实验获取的实测大气CO2吸收光谱进行比对分析，两者吻合一致，验证了本方法获取的仪器线型函数具有较高的精度。
공간외차간섭광보기술시근년발전기래적신형정태초분변광보분광기술，의기선형함수시기기본성능삼수지일，대표료의기적광보분변능력，수요정학표정。재분석의기선형함수영향인소（절지、유효시장각여리축상원효응）이급측량방법여측량광원등특수성요구기출상，제출료일충가조파장단색면광원적전신측량방법，병이용가조해격광기여소산반적분구등설비탑건료측량실험장치。재의기선형함수측량실험중，통과선취광보범위내적전형보단진행고광보（0.1 nm보장）소묘，경과간섭수거오차수정、광보복원이급좌표귀일화등수거처리과정，획취료의기선형함수적능량분포형식。차외，이용전광보범위내소묘적간섭수거，득도의기선형함수적전봉반관수파장적변화규률곡선。최후，장본방법획취적실측의기선형함수여모의광보（LBL계산）진행권적획취이론보，병여지기탐측실험획취적실측대기CO2흡수광보진행비대분석，량자문합일치，험증료본방법획취적의기선형함수구유교고적정도。
Spatial heterodyne spectroscopy (SHS)is a novel method for hyper-spectral analysis ,and instrument line shape function is one of the basic performance parameters ,which should be precisely characterized .Based on the analysis of the influence factors(apodization ,limited angle ,abaxial detector element ) and special requirement for measuring method and source ,the present paper put forward a new method for measuring with tunable monochromatic light source ,and designed experimental equipment with tunable laser and integrating sphere eliminating speckle .Selecting typical spectral range within band range for high spectral resolution scanning (0 .1nm step) ,the energy distribution of spectrum was obtained according to error correction , spectral reconstruction and normalization .In addition ,rule curve for FWHM and wavelength was obtained by the full spectral range scanning interferogram . Finally , theoretical spectrum , ILS convolution simulated spectrum (LBL calculated ) , and measured carbon dioxide absorption spectrum by ground-based experiment are in good agreement .The result shows that the instrument line shape function exhibits high accuracy .