简要介绍了光纤阵列成像激光雷达的研究背景、系统优势和发展现状。然后提出了本文设计的雷达系统, 并介绍了该系统的工作原理, 系统采用光纤阵列前端窗口扫描的方法, 避免了光电探测器阵列的制作, 同时减少了光电探测器的数量。之后文章对光纤阵列成像激光雷达系统的各部分器件进行分析, 包括光纤的选择、光纤阵列的设计和聚焦透镜的分析, 并重点讨论了聚焦透镜 F值对光纤阵列接收系统的影响, 最终得到本系统聚焦透镜 F最优值 5.47。最后推导了本文光纤阵列成像激光雷达系统的传输效率, 给出了传输效率公式。

The research background, system advantages, and current status of fiber-array imaging laser radar are introduced firstly. We present a design scheme of the system and introduce its principle. Window scanning on fiber array is used to avoid fabricating electrophotonic detector arrays and to reduce the number of separate electrophotonic detectors. Every component of fiber-array imaging laser radar is analyzed, including the choice of fiber, the design of fiber array and the analysis of positive lens. The effect of the F number of positive lens on fiber-array receiver is discussed mainly and optimum value of F number is 5.47. The transmission efficiency of fiber-array imaging laser radar is deduced and its expression is presented in the end.