Zhu Wei, Li Jing, Yan Miaoxia, Pei Li, Ning Tigang, Zheng Jingjing, Wang Jianshuai
Appl Opt. 2022 Dec 10;61(35):10499-10506. doi: 10.1364/AO.476452.
A photonic-assisted instantaneous microwave measurement system, capable of measuring multiple frequency signals, is demonstrated and analyzed. The principle lies in the combination of a channelizer and frequency-to-power mapping. An effective generation method of a non-flat optical frequency comb is proposed based on sawtooth wave modulation, which has more comb lines and adjustable comb spacing. Under this method, two low-speed post-processing devices are utilized to realize frequency measurements up to 32 GHz. The scheme is verified by simulation, and factors affecting system performance are also studied.
展示并分析了一种能够测量多个频率信号的光子辅助瞬时微波测量系统。其原理在于信道化器与频率-功率映射的结合。提出了一种基于锯齿波调制的非平坦光学频率梳的有效产生方法，该方法具有更多的梳状线且梳齿间距可调。在此方法下，利用两个低速后处理装置实现了高达32GHz的频率测量。通过仿真验证了该方案，并研究了影响系统性能的因素。
