Liang Yunhua, Chen Minghua, Chen Hongwei, Lei Cheng, Li Pengxiao, Xie Shizhong
Opt Express. 2013 Nov 4;21(22):25700-7. doi: 10.1364/OE.21.025700.
In this paper, a photonic-assisted multi-channel compressive sampling scheme is proposed with one pseudo-random binary sequence (PRBS) source and Wavelength Division Multiplexing-based time delay. Meanwhile, the restricted isometry property of sensing matrix determined by the optimized time delay pattern is analyzed. In experiment, a four-channel photonic-assisted system with 5-GHz bandwidth was set up, where four-channel PRBS signals were generated by adding fiber-induced constant time delays to four-wavelength modulated PRBS signal, and a signal composed of twenty tones was recovered faithfully with four analog-to-digital converters (ADCs) with only 120-MHz-bandwidth.
本文提出了一种基于一个伪随机二进制序列（PRBS）源和基于波分复用的时间延迟的光子辅助多通道压缩采样方案。同时，分析了由优化的时间延迟模式确定的传感矩阵的受限等距特性。在实验中，搭建了一个具有5GHz带宽的四通道光子辅助系统，其中通过向四波长调制的PRBS信号添加光纤诱导的恒定时间延迟来生成四通道PRBS信号，并且仅用带宽为120MHz的四个模数转换器（ADC）就忠实地恢复了由二十个音调组成的信号。
