CAJ | 학술논문

中波红外是非常重要的探测波段，对于目标探测而言，在保证足够光子数的情况下，进行波段选择有利于更好地区分目标与背景。针对典型目标及其所在区域的背景的中波红外光谱辐射特性，分析了信噪比和信杂比对探测的影响，提出了一种基于综合信噪比的波段选择方法，该方法综合考虑了传感器噪声、背景杂波辐射对目标探测的影响，计算了典型状态下目标信噪比、信杂比和综合信噪比，从仿真结果来看，不同典型场景下能使目标探测的综合信噪比较高的波段并不相同，从而给出不同场景下最优探测波段的建议。白天探测该目标，3~3.7μm可以考虑作为优选波段，在夜间探测该目标，3~5μm可以考虑作为优选波段。
중파홍외시비상중요적탐측파단，대우목표탐측이언，재보증족구광자수적정황하，진행파단선택유리우경호지구분목표여배경。침대전형목표급기소재구역적배경적중파홍외광보복사특성，분석료신조비화신잡비대탐측적영향，제출료일충기우종합신조비적파단선택방법，해방법종합고필료전감기조성、배경잡파복사대목표탐측적영향，계산료전형상태하목표신조비、신잡비화종합신조비，종방진결과래간，불동전형장경하능사목표탐측적종합신조비교고적파단병불상동，종이급출불동장경하최우탐측파단적건의。백천탐측해목표，3~3.7μm가이고필작위우선파단，재야간탐측해목표，3~5μm가이고필작위우선파단。
Mid-wave infrared is an important detection band. For target detection, the band selection can better distinguish the target and the background in the condition of ensuring a sufficient number of photons. For the mid-wave infrared spectrum characteristic of the representative targets and background, the detection effect of signal-to-noise ratio (SNR) and signal-to-clutter ratio (SCR) was analysed. The band selection method based on synthetic signal-to-noise ratio (SSNR) was proposed. The sensor noise and radiation of backgroud clutter were considered synthetically in this method. The target SNR、SCR and SSNR in some representative conditions were calculated. Simulation results show that the band of high SSNR is different in the different type scenes. The advice of optimization detection band is proposed. In the condition of daytime detection, 3-3.7μm can be considered as a preferred band. In the condition of night detection, 3-5μm can be considered as a preferred band.