Photonic Generation of Wideband Chirped Microwave Waveforms
Photonic Generation of Wideband Chirped Microwave Waveforms
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DOI：
10.1109/jmw.2021.3085868
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发表时间：
2021
影响因子：
--
通讯作者：
H. Chi;Chao Wang;J. Yao
中科院分区：
文献类型：
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作者：
H. Chi;Chao Wang;J. Yao
具有大时间带宽积（TBWP）的啁啾微波波形在现代雷达系统和微波成像系统中具有重要应用。微波光子学是一个研究在光域中产生和处理微波信号以利用光子学提供的超宽带宽的领域，已被认为是高频和大带宽微波波形产生的有效解决方案。本文综述了宽带啁啾微波波形的光子产生技术。讨论了三种主要的方法，包括基于频谱成形和频率-时间映射（SS-FTT）的啁啾微波波形产生，频率和带宽倍增，和光电子振荡器（OEO）的傅里叶域锁模。研究了啁啾微波波形产生技术的性能。讨论了基于光子集成电路（PIC）产生啁啾微波波形的技术。
A chirped microwave waveform with a large time-bandwidth product (TBWP) can find important applications in modern radar systems and microwave imaging systems. Microwave photonics, a field that studies the generation and processing of microwave signals in the optical domain to take advantage of the ultra-wide bandwidth offered by photonics, has been considered an effective solution for high-frequency and large-bandwidth microwave waveform generation. In this paper, an overview on photonic generation of wideband chirped microwave waveforms is provided. Three major methods are discussed including chirped microwave waveform generation based on spectral shaping and frequency-to-time (SS-FTT) mapping, frequency and bandwidth multiplication, and Fourier-domain mode-locking of an optoelectronic oscillator (OEO). The performance of the techniques for chirped microwave waveform generation is studied. Techniques to generate chirped microwave waveforms based on photonic integrated circuits (PICs) are also discussed.