| 测距光束光斑漂移的数值仿真 |
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| 引用本文： | 李荣旺,常翔,熊耀恒.测距光束光斑漂移的数值仿真[J].光学学报,2011(11):1-6. |
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| 作者姓名： | 李荣旺 常翔 熊耀恒 |
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| 作者单位： | 中国科学院国家天文台云南天文台; |
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| 基金项目： | 国家自然科学基金(10778705)资助课题 |
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| 摘 要： | 针对远距离激光测距,如地球同步卫星测距、激光测月,利用基于傅里叶变换的分步传播方法对测距光束在湍流大气中的上行传播进行数值仿真.根据大气结构常数廓线,采用等Rytov指数间隔法分布相位屏,与理论值比对的结果表明相位屏的分布合理.在此基础上,对光束的光斑漂移进行分析,得到光斑漂移量与准直测距光束束腰的定量关系,为测距激光...
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| 关 键 词： | 大气光学 数值仿真 光斑漂移 远距离激光测距 |
Numerical Simulation of Wander of Ranging Laser Beam |
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| Li Rongwang Chang Xiang Xiong Yaoheng.Numerical Simulation of Wander of Ranging Laser Beam[J].Acta Optica Sinica,2011(11):1-6. |
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| Authors: | Li Rongwang Chang Xiang Xiong Yaoheng |
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| Institution: | Li Rongwang Chang Xiang Xiong Yaoheng(Yunnan Observatory of National Astronomical Observatories,Chinese Academy of Sciences,Kunming,Yunnan 650011,China) |
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| Abstract: | For the application of long-distance laser ranging,such as geosynchronous satellite laser ranging and lunar laser ranging,the uplink beam is simulated by using split-step numerical method(or fast-Fourier-transform beam propagation method).Using unequal interval phase screen distribution according to the profile of atmosphere structural constant,the average propagation intensity is in good agreement with theoretical value.Based on this,the effect of beam wander is analyzed,which is the main reason of intensi... |
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| Keywords: | atmospheric optics numerical simulation beam wander long-distance laser ranging |
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