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%。
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.
作者
刘延雷
李保平
段卜月
王明吉
廖晓玲
李栋
王迪
LIU Yanlei;LI Baoping;DUAN Buyue;WANG Mingji;LIAO Xiaoling;LI Dong;WANG Di(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)
出处
《激光杂志》
北大核心
2020年第3期91-95,共5页
Laser Journal
基金
杭州市社发项目(No.20180533B20)
黑龙江省教育厅2018年度省属高校科技成果研发
培育项目(No.TSTAU-R2018020)
中国博士后科学基金特别资助项目(No.2018T110267)
中国石油科技创新基金研究项目(No.2018D-5007-0608)
国家质检总局科技计划项目(No.2016QK143)。
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
radiative transfer
fresnel lens array
echo power
detection distance
optical efficiency
