光电观瞄系统激光照射距离分析
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摘要
激光照射距离是光电观瞄系统照射器和火控系统重要的设计输入。对于激光制导系统,利用能量传递关系可导出入瞳处的能量密度,进而分析影响光电观瞄系统激光照射距离的因素。通过目标反射因子和大气透过率经验公式的推导,建立了照射距离和激光能量、导引头灵敏度阈值、束散角、目标大小等影响因素的函数关系。借助Matlab编程,实现照射距离的快速求解。计算结果表明,照射距离随着激光能量提高而增大,达到一定距离后,增速明显放缓。对于面目标,目标靶面法线平行于弹目连线时,照射距离最大。此外,任务高度、目标大小、导引头灵敏度阈值和气象参数等也是影响照射距离的关键因素。
Laser designation distance of electro-optical targeting system is an important design input of the laser designator and the fire control system.By using the energy transfer sequence of laser-guided system?we obtained the energy density at the entrance pupil of the seeker?and analyzed the factors that have effects on the designation distance.The empirical equations of target reflectance factor and atmospheric transmittance were deduced?and the functional relationship between the designation distance and such factors as laser energy?seeker sensitivity threshold?the divergence angle and the size of target?etc.Then the designation distance was obtained with the aid of Matlab.The calculation result showed that:1) The designation distance increases with the laser energy?and the slope decreases obviously when it achieves a certain distance;2) For a surface target?the maximum designation distance is reached when the target normal is parallel to target-seeker direction;and 3) There are some other important factors that have effects on the designation distance?including the attack height?the target size?the seeker sensitivity threshold?the atmospheric parameters?and so on.
Laser designation distance of electro-optical targeting system is an important design input of the laser designator and the fire control system.By using the energy transfer sequence of laser-guided system?we obtained the energy density at the entrance pupil of the seeker?and analyzed the factors that have effects on the designation distance.The empirical equations of target reflectance factor and atmospheric transmittance were deduced?and the functional relationship between the designation distance and such factors as laser energy?seeker sensitivity threshold?the divergence angle and the size of target?etc.Then the designation distance was obtained with the aid of Matlab.The calculation result showed that:1) The designation distance increases with the laser energy?and the slope decreases obviously when it achieves a certain distance;2) For a surface target?the maximum designation distance is reached when the target normal is parallel to target-seeker direction;and 3) There are some other important factors that have effects on the designation distance?including the attack height?the target size?the seeker sensitivity threshold?the atmospheric parameters?and so on.
引文
[1] 张腾飞,张合新,惠俊军,等.激光制导武器发展及应用概述[J].电光与控制,2015?22(10):62-67.
[2] 刘秉琦,闫雅慧,周冰,等.激光半主动制导系统的极限作用距离测量模型[J].半导体光电,2014?35(2):354-357.
[3] 陈前荣,王国玉,陈永光,等.激光制导武器探测作用距离影响因素分析评估[J].电子对抗,2007?117(6):34- 40.
[4] 华创录,王春艳,王晓曼,等.外场激光导引性能分析[J].长春理工大学学报:自然科学版,2017?40(1):60-63.
[5] 夏兴宇,王国民,李文生,等.激光半主动制导武器作战配置建模与仿真[J].弹箭与制导学报,2013?33(4):45- 48.
[6] 邓潘.浅析激光半主动寻的制导系统[J].制导与引信,2008,29(4):15-20.
[7] 李晓彤,岑兆丰.几何光学,像差和光学设计[M].杭州:浙江大学出版社,2014:78-92.
[8] AMMON Y.Optical electronics in modern communications[M].5th ed.Oxford:Oxford University Press?1997:121-158.
[9] 孟凡斌,郑丽.基于LOWTRAN 7的红外大气透过率计算方法[J].光电技术应用,2009?24(3):29-32.
[10] 张文攀,吴军辉,胡欣,等.基于激光导引头对抗数据的光电对抗效果实验方法[J].红外与激光工程,2013?42(3):637-642.
[11] 臧永强,王仕成,刘志国,等.1.064 μm激光制导半实物仿真大气衰减模型研究[J].电光与控制,2012?19(9):17-22.
[12] WANG W T?YANG Y Y,ZHAO W F?et al.Analysis of laser atmospheric propagation characteristic and optimization of laser rangefinder[C]//International Symposium on Photoelectronic Detection and Imaging,2013.doi:10.1117/12.2033264.
[13] 张辉.强激光大气斜程传输热晕数值摸拟[D].西安:西安电子科技大学,2010.
[2] 刘秉琦,闫雅慧,周冰,等.激光半主动制导系统的极限作用距离测量模型[J].半导体光电,2014?35(2):354-357.
[3] 陈前荣,王国玉,陈永光,等.激光制导武器探测作用距离影响因素分析评估[J].电子对抗,2007?117(6):34- 40.
[4] 华创录,王春艳,王晓曼,等.外场激光导引性能分析[J].长春理工大学学报:自然科学版,2017?40(1):60-63.
[5] 夏兴宇,王国民,李文生,等.激光半主动制导武器作战配置建模与仿真[J].弹箭与制导学报,2013?33(4):45- 48.
[6] 邓潘.浅析激光半主动寻的制导系统[J].制导与引信,2008,29(4):15-20.
[7] 李晓彤,岑兆丰.几何光学,像差和光学设计[M].杭州:浙江大学出版社,2014:78-92.
[8] AMMON Y.Optical electronics in modern communications[M].5th ed.Oxford:Oxford University Press?1997:121-158.
[9] 孟凡斌,郑丽.基于LOWTRAN 7的红外大气透过率计算方法[J].光电技术应用,2009?24(3):29-32.
[10] 张文攀,吴军辉,胡欣,等.基于激光导引头对抗数据的光电对抗效果实验方法[J].红外与激光工程,2013?42(3):637-642.
[11] 臧永强,王仕成,刘志国,等.1.064 μm激光制导半实物仿真大气衰减模型研究[J].电光与控制,2012?19(9):17-22.
[12] WANG W T?YANG Y Y,ZHAO W F?et al.Analysis of laser atmospheric propagation characteristic and optimization of laser rangefinder[C]//International Symposium on Photoelectronic Detection and Imaging,2013.doi:10.1117/12.2033264.
[13] 张辉.强激光大气斜程传输热晕数值摸拟[D].西安:西安电子科技大学,2010.