CAJ | 학술논문

在充分研究焦平面热成像系统欠采样成因的基础上，分析了ANN法和基于信息理论的光电成像系统欠采样混频评价方法，把欠采样混频看作是系统的噪声，并和其他系统噪声一起加到MRTD模型中，给出了包含欠采样噪声的MRTD模型。对比含欠采样噪声的MRTD模型仿真数据与文献中实测MRTD数据，该模型对MRTD仿真结果与测量数据走势基本一致，能够用于评价欠采样混频对热成像系统性能的影响，但模型的精确性还需要进一步修正。下一步将通过测量各种型号焦平面热像仪的MRTD，对含欠采样混频的MRTD模型进行修正。
재충분연구초평면열성상계통흠채양성인적기출상，분석료ANN법화기우신식이론적광전성상계통흠채양혼빈평개방법，파흠채양혼빈간작시계통적조성，병화기타계통조성일기가도MRTD모형중，급출료포함흠채양조성적MRTD모형。대비함흠채양조성적MRTD모형방진수거여문헌중실측MRTD수거，해모형대MRTD방진결과여측량수거주세기본일치，능구용우평개흠채양혼빈대열성상계통성능적영향，단모형적정학성환수요진일보수정。하일보장통과측량각충형호초평면열상의적MRTD，대함흠채양혼빈적MRTD모형진행수정。
Based on the full study for the under-sampling aliased response of focal plane thermal imaging systems, the Aliasing As Noise (AAN) method and the optical imaging system under-sampling evaluation method on the basis of information theory were analyzed. The under-sampling aliased response was regarded as a system noise and put into MRTD model like other system noise. The new MRTD model containing the under-sampling noise was obtained. By contrasting the data which got from the simulation of the new MRTD model and references, the change between the simulation and data in references is basically same. So the new model can be used to evaluate the impact of under-sampling on the performance of thermal imaging systems, however it needs further amendment for more accurate. The next step, the new MRTD model with aliasing response will be amended by measured MRTD data of focal plane thermal imaging systems.