红外与激光工程
紅外與激光工程
홍외여격광공정
INFRARED AND LASER ENGINEERING
2013年
z2期
298-303
,共6页
距离选通%三维仿真%空间目标%模型
距離選通%三維倣真%空間目標%模型
거리선통%삼유방진%공간목표%모형
range-gated%three-dimensional simulation%space target%model
由于实验条件及实验手段的局限性，针对空间目标难以经常进行天基实验，建立了距离选通条件下基于物理模型的三维目标激光主动成像仿真方法。首先将系统各部分分解并逐个分析，分别建立了激光光束传输模型、目标三维模型、非相干成像模型、ICCD成像模型，然后根据激光及光学系统参数、ICCD参数仿真了空间目标的二维时间切片图像，最后根据二维切片仿真图像序列实现了距离选通条件下的三维目标成像仿真。仿真结果表明：通过二维仿真图像序列控制不同的距离选通条件，可以完成对目标不同精度的三维重建，能为将来的实验研究提供重要的指导依据。
由于實驗條件及實驗手段的跼限性，針對空間目標難以經常進行天基實驗，建立瞭距離選通條件下基于物理模型的三維目標激光主動成像倣真方法。首先將繫統各部分分解併逐箇分析，分彆建立瞭激光光束傳輸模型、目標三維模型、非相榦成像模型、ICCD成像模型，然後根據激光及光學繫統參數、ICCD參數倣真瞭空間目標的二維時間切片圖像，最後根據二維切片倣真圖像序列實現瞭距離選通條件下的三維目標成像倣真。倣真結果錶明：通過二維倣真圖像序列控製不同的距離選通條件，可以完成對目標不同精度的三維重建，能為將來的實驗研究提供重要的指導依據。
유우실험조건급실험수단적국한성，침대공간목표난이경상진행천기실험，건립료거리선통조건하기우물리모형적삼유목표격광주동성상방진방법。수선장계통각부분분해병축개분석，분별건립료격광광속전수모형、목표삼유모형、비상간성상모형、ICCD성상모형，연후근거격광급광학계통삼수、ICCD삼수방진료공간목표적이유시간절편도상，최후근거이유절편방진도상서렬실현료거리선통조건하적삼유목표성상방진。방진결과표명：통과이유방진도상서렬공제불동적거리선통조건，가이완성대목표불동정도적삼유중건，능위장래적실험연구제공중요적지도의거。
Because of the limitation of experimental condition and experimental method to complete the space-based experiment problems, a three-dimensional of laser active imaging simulation method was established based on the physical model. Each part of the system was analyzed. The laser beam transmission model, target three-dimensional model, incoherent imaging model and ICCD imaging model were established respectively. Then two-dimensional time slice image of space target was simulated according to the laser and optical system parameters, ICCD parameters. Finally, the 3D imaging of range-gated conditions was simulated based on the two-dimensional slice simulation image sequences. The experiment shows that three-dimensional reconstruction of the target with different accuracy can be completed by through the two-dimensional simulation image sequence and different control range gating condition. The 3D simulation model provides important guidance for future experimental studies.
