CAJ | 학술논문

高速飞行器在大气层内长时间飞行，与空气摩擦生成几千度高温，研究其红外辐射及热防护效果是当前的热点。然而用多台地基红外辐射测量设备测量飞行目标时，各红外辐射测量设备多波段的结果有着较大差异。首先分析了高速飞行目标红外辐射成像的特点，指出测量结果存在不一致性的原因，主要有飞行目标的方向效应、红外设备本身的滤波效应。然后提出了解决同设备不同波段处理结果不一致的方案，包括标定数据处理、坏像元剔除、杂散能量和反射的星体辐射能量抵消。最后又提出了多站红外辐射测量设备处理结果不一致性分析方案，以及外场试验方案。
고속비행기재대기층내장시간비행，여공기마찰생성궤천도고온，연구기홍외복사급열방호효과시당전적열점。연이용다태지기홍외복사측량설비측량비행목표시，각홍외복사측량설비다파단적결과유착교대차이。수선분석료고속비행목표홍외복사성상적특점，지출측량결과존재불일치성적원인，주요유비행목표적방향효응、홍외설비본신적려파효응。연후제출료해결동설비불동파단처리결과불일치적방안，포괄표정수거처리、배상원척제、잡산능량화반사적성체복사능량저소。최후우제출료다참홍외복사측량설비처리결과불일치성분석방안，이급외장시험방안。
The high-speed aircraft flies in atmosphere for a long time and the friction between aircraft and air makes huge thermal energy. Measuring the infrared energy of high-speed flying aircraft to verify the design of heat protection system is the hot topic. Generally many infrared optic systems at different locations are applied to measure infrared energy of the same flying aircraft, but the results of these infrared optic systems are not consistent. This paper firstly analyzes the characteristics of high-speed flying targets imaging, then points out the reasons which make the inconsistent results, such as infrared energy of targets is relevant with the direction of infrared emission and the optical system can only receive infrared energy within specific bandwidth. Then the methods dealing with inconsistent results of different bands of one infrared optical system are proposed, which includes computing calibration data, finding dead pixels, delimiting stray energy of background and reflected energy of sun and earth by the aircraft. Finally, the methods of analyzing the inconsistent results of different infrared systems and field experiments for verification are proposed.