| 无合作目标激光检测气体回波功率增强研究 |
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| 引用本文： | 刘延雷,李保平,段卜月,王明吉,廖晓玲,李栋,王迪.无合作目标激光检测气体回波功率增强研究[J].四川激光,2020,41(3):91-95. |
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| 作者姓名： | 刘延雷 李保平 段卜月 王明吉 廖晓玲 李栋 王迪 |
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| 作者单位： | 杭州市特种设备检测研究院,杭州310051;上海市松江区安全生产监察大队,上海松江201699;东北石油大学土木建筑工程学院,黑龙江大庆163318;东北石油大学电子科学学院,黑龙江大庆163318 |
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| 基金项目： | 黑龙江省教育厅省属高校科技成果研发、培育项目;中国博士后科学基金特别资助项目;杭州市社发项目;中国石油科技创新研究项目;国家质检总局科技计划项目 |
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| 摘 要： | 为提高无合作目标遥测气体回波功率的检测性能,建立了无合作目标表面激光辐射传输模型和菲涅尔透镜汇聚点偏移模型。利用TracePro光学软件分析了漫反射回波传输特性。研究了不同检测距离下激光回波辐射强度的变化。对比单菲涅尔透镜光接收机(SFL-OR)和菲涅尔透镜阵列光接收机(FLA-OR)的回波功率检测特性并分析其存在差异的原因。结果表明,无合作目标表面扩散反射回波功率与检测距离呈幂函数关系。在10~20 m检测距离范围内,FLA-OR相对于SFL-OR几何尺寸缩小了90%,光学效率达到92%,而SFL-OR由于汇聚点偏移导致其平均光学效率仅为38.56%。
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| 关 键 词： | 辐射传输 菲涅尔透镜阵列 回波功率 检测距离 光学效率 |
Research on Enhancement of Gas Echo Power in Laser Detection without Cooperative Target |
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| LIU Yanlei,LI Baoping,DUAN Buyue,WANG Mingji,LIAO Xiaoling,LI Dong,WANG Di.Research on Enhancement of Gas Echo Power in Laser Detection without Cooperative Target[J].Laser Journal,2020,41(3):91-95. |
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| Authors: | LIU Yanlei LI Baoping DUAN Buyue WANG Mingji LIAO Xiaoling LI Dong WANG Di |
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| Affiliation: | (Hangzhou Special Equipment Inspection and Research Institute,Hangzhou Zhejiang Province 310051 China;Shanghai Songjiang District Safety Production Supervision Brigade,Shanghai,201699,China;School of Civil Engineering and Architecture Northeast Petroleum University,Daqing 163318,China;School of Electronic Science Northeast Petroleum University,Daqing 163318,China) |
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| Abstract: | In order to enhance the property of echo power detection for the remote measurement gas system without cooperative target.The models of laser radiation transmission for the non-cooperative target surface and the convergence point deviation of Fresnel was established.The transmission characteristics of diffuse reflection echo were analyzed by using Trace Pro optical software.The variation of laser echo radiation intensity at different detection distances was studied.The echo power detection characteristics of single Fresnel lens optical receiver(SFL-OR)and Fresnel lens array optical receiver(FLA-OR)were compared and the reasons for the differences were analyzed.The results show that there is a power function relationship between the echo power of surface diffusion reflection and detection distance of non-cooperative targets.In the range of 10-20 m,the geometric size of FLA-OR is reduced by 90%compared with SFL-OR,and the optical efficiency of SFL-OR is 92%.However,the average optical efficiency of SFLOR is only 38.56%due to the shift of convergence point. |
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| Keywords: | radiative transfer fresnel lens array echo power detection distance optical efficiency |
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