计算机仿真
計算機倣真
계산궤방진
COMPUTER SIMULATION
2010年
4期
215-218
,共4页
陈灵娟%李岩%张明慧%冯小勇
陳靈娟%李巖%張明慧%馮小勇
진령연%리암%장명혜%풍소용
数字建模%大气衰减%红外仿真%大气辐射计算
數字建模%大氣衰減%紅外倣真%大氣輻射計算
수자건모%대기쇠감%홍외방진%대기복사계산
Digital modeling%Atmospheric attenuation%Infrared image simulation%Atmospheric radiation calculation
为了解决红外目标的数字仿真过程中大气辐射和透射率的计算问题,研究了当前几种仿真工具并将与大气辐射透过率计算软件相结合,并对红外目标的仿真过程做深入研究以提高精度.借助于虚拟纹理映射使由Creator建立的简单几何模型,在Sensor Vision模块中结合预先计算的大气辐射文件和材质属性文件得到目标的红外数字模型,并用MOSART大气工具计算的大气辐射文件及LOWTRAN计算的大气透过率得到优化结果.证明方法对于建立更精细的红外仿真模型和对红外仿真结果很有实用价值.
為瞭解決紅外目標的數字倣真過程中大氣輻射和透射率的計算問題,研究瞭噹前幾種倣真工具併將與大氣輻射透過率計算軟件相結閤,併對紅外目標的倣真過程做深入研究以提高精度.藉助于虛擬紋理映射使由Creator建立的簡單幾何模型,在Sensor Vision模塊中結閤預先計算的大氣輻射文件和材質屬性文件得到目標的紅外數字模型,併用MOSART大氣工具計算的大氣輻射文件及LOWTRAN計算的大氣透過率得到優化結果.證明方法對于建立更精細的紅外倣真模型和對紅外倣真結果很有實用價值.
위료해결홍외목표적수자방진과정중대기복사화투사솔적계산문제,연구료당전궤충방진공구병장여대기복사투과솔계산연건상결합,병대홍외목표적방진과정주심입연구이제고정도.차조우허의문리영사사유Creator건립적간단궤하모형,재Sensor Vision모괴중결합예선계산적대기복사문건화재질속성문건득도목표적홍외수자모형,병용MOSART대기공구계산적대기복사문건급LOWTRAN계산적대기투과솔득도우화결과.증명방법대우건립경정세적홍외방진모형화대홍외방진결과흔유실용개치.
To resolve the problems of atmospheric attenuation and transmittance computation in the process of infrared digital simulation,several present simulation tools were studied and combined with atmospheric transmittance compute tools,which would be helpful for improving precision in the infrared digital simulation.With the aid of the texture-mapping tool,the model established by the MultiGen Creator will be optimized.The model is combined with files computed by MAT or TMM in the Sensor Vision module which creates the target infrared model.Besides,the data in the MAT file is analyzed,as well as transmittance rate computed by LOWTRAN is given.So the method in this article is very meaningful to establish the better infrared simulation model and evaluate the infrared simulation resuit.