Microwave photonic pulse radar system based on optical frequency operation modulation for high-resolution target detection

Xiaotong Liu; Hongyi Wang; Yibei Wang; Anle Wang; Jin Zhang; Yalan Wang; Hong Chen; Dangwei Wang

doi:10.1117/12.3007324

21 December 2023 Microwave photonic pulse radar system based on optical frequency operation modulation for high-resolution target detection

Xiaotong Liu, Hongyi Wang, Yibei Wang, Anle Wang, Jin Zhang, Yalan Wang, Hong Chen, Dangwei Wang

Author Affiliations +

Proceedings Volume 12966, AOPC 2023: AI in Optics and Photonics ; 129661H (2023) https://doi.org/10.1117/12.3007324
Event: Applied Optics and Photonics China 2023 (AOPC2023), 2023, Beijing, China

Abstract

A microwave photonic (MWP) pulse radar system for high-resolution target detection is proposed and experimentally demonstrated in this article. In the transmitter, a pulsed linearly-frequency-modulated (LFM) wave is generated based on optical frequency operation module (OFOM), which can generate LFM waves with ultra-flexibly tunable center frequency. In the receiver, optical-domain down-conversion is employed to convert the incoming echo to an intermediate frequency signal by a microwave photonic frequency mixer, which can free the receiver from high-speed ADC and provide an excellent wideband processing. Experimentally, a Ku-band pulsed LFM wave with a bandwidth of 840 MHz is generated and received through self-closed-loop and target detection test by the constructed system. The performance verifies that the proposed pulsed MWP radar has the potential of supporting high-resolution detection and recognition of distant targets.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Xiaotong Liu, Hongyi Wang, Yibei Wang, Anle Wang, Jin Zhang, Yalan Wang, Hong Chen, and Dangwei Wang "Microwave photonic pulse radar system based on optical frequency operation modulation for high-resolution target detection", Proc. SPIE 12966, AOPC 2023: AI in Optics and Photonics , 129661H (21 December 2023); https://doi.org/10.1117/12.3007324

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