A microwave photonic radar system with coherent dual band and large bandwidth

Xiaotong Liu; Dangwei Wang; Anle Wang; Daikun Zheng; Jin Zhang; Yalan Wang; Chengji Lin; Yibei Wang

doi:10.1117/12.2655003

9 January 2023 A microwave photonic radar system with coherent dual band and large bandwidth

Xiaotong Liu, Dangwei Wang, Anle Wang, Daikun Zheng, Jin Zhang, Yalan Wang, Chengji Lin, Yibei Wang

Proceedings Volume 12507, Advanced Optical Manufacturing Technologies and Applications 2022; and 2nd International Forum of Young Scientists on Advanced Optical Manufacturing (AOMTA and YSAOM 2022); 125070S (2023) https://doi.org/10.1117/12.2655003
Event: 2nd International Forum of Young Scientists on Advanced Optical Manufacturing (AOMTA and YSAOM 2022), 2022, Changchun, China

Abstract

A coherent dual-band microwave photonic (MWP) radar system is proposed and experimentally demonstrated in this paper. In the transmitter, coherent dual band linear frequency modulation (LFM) waves with the characteristics of tunable central frequency and the same large bandwidth are generated based on an improved optical frequency operation module (OFOM). In the receiver, the information of targets is obtained after the echoes at two bands are received and de-chirp processed simultaneously. Experimentally, the presented coherent dual-band MWP radar system operating in X band and Ku band with an instantaneous bandwidth of 3GHz is constructed. A target-detection experiment verifies that centimeter level resolution can be achieved by the system.

Citation Download Citation

Xiaotong Liu, Dangwei Wang, Anle Wang, Daikun Zheng, Jin Zhang, Yalan Wang, Chengji Lin, and Yibei Wang "A microwave photonic radar system with coherent dual band and large bandwidth", Proc. SPIE 12507, Advanced Optical Manufacturing Technologies and Applications 2022; and 2nd International Forum of Young Scientists on Advanced Optical Manufacturing (AOMTA and YSAOM 2022), 125070S (9 January 2023); https://doi.org/10.1117/12.2655003

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KEYWORDS

Radar

Microwave photonics

Signal generators

Receivers

Digital signal processing

Modulation

X band

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