Wang Yanyi, Liu Jiaxuan, Ding Junjie, Wang Mingxu, Zhao Feng, Yu Jianjun
Opt Express. 2022 Apr 11;30(8):13404-13415. doi: 10.1364/OE.449153.
The photonics-based technology has the advantages of wide bandwidth in millimeter wave (mm-wave) communication and radar sensing systems. In the present work, we propose a novel joint communication and radar sensing functions system based on photonics at the W-band. In the proposed system, the broadband linear frequency modulated (LFM) signal and high-speed M-quadrature amplitude modulation (MQAM) signal are simultaneously obtained by heterodyning two free-running external cavity lasers (ECLs). Based on this system, a communication rate of 78 Gbit/s and a radar with a 5-GHz bandwidth is achieved. This is a good solution to incorporate a high-speed communication and high-resolution radar sensing functions system.
基于光子学的技术在毫米波（mm波）通信和雷达传感系统中具有带宽宽的优势。在本工作中，我们提出了一种基于光子学的W波段新型联合通信与雷达传感功能系统。在所提出的系统中，通过对两个自由运行的外腔激光器（ECL）进行外差混频，同时获得宽带线性调频（LFM）信号和高速M正交幅度调制（MQAM）信号。基于该系统，实现了78 Gbit/s的通信速率和带宽为5 GHz的雷达。这是整合高速通信和高分辨率雷达传感功能系统的一个良好解决方案。
