Laser & Optoelectronics Progress, Volume. 59, Issue 2, 0204001(2022)
Multi-Channel Timing Measurement for Multi-Beam Single-Photon Radar
Multi-beam single-photon radar has important applications in fields such as earth surveying and long-range imaging, and multi-channel timing measurement technology significantly determines the performance of the entire system. Therefore, we propose a parallel measurement method of multi-channel time-to-digital conversion based on clock phase shifting method. Through a single Xilinx Artix-7 series field-programmable gate array chip, the method can realize the simultaneous timing measurement of 100 channels single-photon signal. The timing resolution of 1.0 ns, the measurement accuracy is 360 ps, and the range of 65 μs. Based on the device, the multi-channel single-photon echo signal measurement are remarked on the advantages as high stability, low power consumption, high speed, and compact structure, which meets the timing requirements of the multi-beam single-photon radar.
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Linli Wang, Chenyi Wu, Huiyu Qi, Tianxiang Zheng, Haifeng Pan, Lei Yang, Zhaohui Li, Guang Wu. Multi-Channel Timing Measurement for Multi-Beam Single-Photon Radar[J]. Laser & Optoelectronics Progress, 2022, 59(2): 0204001
Category: Detectors
Received: Feb. 25, 2021
Accepted: Mar. 15, 2021
Published Online: Dec. 23, 2021
The Author Email: Yang Lei (lyang@lps.ecnu.edu.cn), Wu Guang (gwu@phy.ecnu.edu.cn)