Wu Fangbing, Dong Boyu, Du Ping, Dong Mingji, Miao Xin, Zhao Junhao, Li Zhongya, Shen Wangwei, Shi Jianyang, Chi Nan, Zhang Junwen
Opt Lett. 2024 Aug 15;49(16):4605-4608. doi: 10.1364/OL.528335.
We have experimentally demonstrated a constant envelope linear frequency modulated orthogonal frequency division multiplexing (CE-LFM-OFDM) signal by employing an orthogonal frequency division multiplexing (OFDM) signal to phase modulate the linear frequency modulation (LFM) carrier. The experimental verification was conducted in the photonic-based integrated sensing and communication (ISAC) system working at 94.5 GHz. In our system, a 10-km optical fiber and a 1-m free space transmission are incorporated, achieving seamless fiber-wireless networks. As a result, we achieved data rates ranging from 8 to 15.4 Gbit/s and range resolution ranging from 1.5 to 7.5 cm, respectively.
我们通过采用正交频分复用（OFDM）信号对线性调频（LFM）载波进行相位调制，实验验证了一种恒包络线性调频正交频分复用（CE-LFM-OFDM）信号。实验验证是在工作于94.5 GHz的基于光子的集成传感与通信（ISAC）系统中进行的。在我们的系统中，纳入了一段10公里长的光纤和1米的自由空间传输，实现了无缝光纤无线网络。结果，我们分别实现了8至15.4 Gbit/s的数据速率和1.5至7.5 cm的距离分辨率。
