Reconfigurable radar signal generator based on phase-quantized photonic digital-to-analog conversion

Release time:2023-05-08  Hits:

• DOI number:10.1364/OL.458132
• Journal:OPTICS LETTERS
• Abstract:A novel, to the best of our knowledge, scheme for reconfigurable radar signal generation is proposed based on the principle of photonic phase-quantized digital-to-analog conversion. Multi-level digital phase modulation with different modulation depths is combined to convert multi-channel digital data to the phase of an optical carrier. Frequency-modulated or phase-modulated radar signals are generated by beating the phase-synthesized optical carrier with a coherent reference light. The proposed radar signal generator features a simple structure, highly reconfigurable modulation format, and flexibly tunable frequency. A 3-bit photonic phase-quantized digital-to-analog converter with a 10-GSa/s sampling rate is constructed experimentally. The generation of linear frequency-modulated, nonlinear frequency-modulated, frequency-stepped, frequency-hopping, binary phase-coded, and polyphase-coded waveforms is demonstrated. (C) 2022 Optica Publishing Group
• First Author:Li, Jiading, Xiaoxiao, Xue, Zhujun, Yang, Bofan,wang, Mian, Li, Shangyuan, Zheng, Xiaoping
• Indexed by:J
• Document Type:Article
• Volume:47
• Issue:10
• Page Number:2470
• ISSN No.:0146-9592
• Translation or Not:no