基于电光调制和线性调频去斜的微波光子测距研究RESEARCH ON MICROWAVE PHOTONIC RANGING BASED ON ELECTRO-OPTIC MODULATION AND LINEAR FREQUENCY MODULATION DE-CHIRP
王云新,姚锦川,侯雪缘,王大勇,赵洁,杨锋,戎路,林述锋
摘要(Abstract)：
传统的电磁测距受到电子学瓶颈的局限，难以进一步提升工作带宽，导致系统的测距精度受限。本文提出了一种基于电光调制和线性调频去斜的微波光子测距方法，利用马赫-曾德尔调制器获取±1阶调制光边带，通过光电探测产生二倍频的宽带线性调频发射信号，可有效提升系统的距离分辨率；在接收端采用线性调频去斜接收的方法，通过探测中频信号的频率反演获得目标距离信息，可极大地降低对后续模数转换器采样速率的要求。该研究将电光调制、光电探测等基础知识实际应用到微波光子测距中，与科学前沿有机结合，有助于拓展教学内容、提升教学深度，有利于培养学生的科学素养和实践能力。
关键词(KeyWords)： 微波光子测距;电光调制;线性调频;光电探测
基金项目(Foundation): 北京工业大学研究性教学示范课程（光学）项目;; 北京自然科学基金项目（4202001）资助
作者(Author): 王云新,姚锦川,侯雪缘,王大勇,赵洁,杨锋,戎路,林述锋
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