CAJ | 학술논문

地球静止轨道凝视成像技术是航天遥感领域的重要研究内容。为了实现静轨对地不间断观测的目的，设计了一套覆盖地球全圆盘的大视场中波红外凝视成像光学系统。通过光焦度分配、光线高度控制和冷阑匹配，实现了大视场二次成像光学结构；根据现有面型检测水平，合理分配非球面，解决了多重像差问题。结合实际装调工艺，对温度适应性情况进行讨论。设计得到的光学系统视场达到18°×18°，角分辨率为72mrad。设计结果表明，各个视场的MTF在奈奎斯特频率处（16.7 lp/mm）均大于0.7，像元尺寸内能量集中度大于83%，冷阑效率大于98%。该系统有望在静止轨道红外探测相机、高灵敏度天文卫星等领域实现重要应用价值。
지구정지궤도응시성상기술시항천요감영역적중요연구내용。위료실현정궤대지불간단관측적목적，설계료일투복개지구전원반적대시장중파홍외응시성상광학계통。통과광초도분배、광선고도공제화랭란필배，실현료대시장이차성상광학결구；근거현유면형검측수평，합리분배비구면，해결료다중상차문제。결합실제장조공예，대온도괄응성정황진행토론。설계득도적광학계통시장체도18°×18°，각분변솔위72mrad。설계결과표명，각개시장적MTF재내규사특빈솔처（16.7 lp/mm）균대우0.7，상원척촌내능량집중도대우83%，랭란효솔대우98%。해계통유망재정지궤도홍외탐측상궤、고령민도천문위성등영역실현중요응용개치。
Geostationary Orbit(GEO) staring imaging technology is an important field of aerospace remote sensing technology research. A wide FOV of high-resolution secondary imaging optical system is realized by optical power distribution, materials athermal design and ray height control. Combined with the actual processing and detection level, the aspheric design method is used in the aberration balance. Finally, temperature adaptability is discussed. The designed optical system has a full field of view of 18°×18°, the IFOV is 72μrad. The results indicate that the modulation transfer functions(MTF) of all FOV at Nyquist frequency(16.7lp/mm)are larger than 0.7, 83% infrared encircled energy is concentrated in one pixel. Moreover, it could obtain well cold aperture efficiency of 98%. The staring wide FOV optical system could be widely applied in infrared detection camera and high sensitivity astronomy satellite in GEO orbit and other fields.