Dynamic time-correlated single-photon counting laser ranging

• 作者: 吴光 孟文东 彭欢 李召辉 李辰 潘海峰 王煜蓉 颜佩琴
• 来源期刊: 光电子快报（英文版）
• 年，卷（期）: 2018,（2）
• 页码范围: 129-132
• 页数: 4页
• 语种: 英文
• DOI: 10.1007/s11801-018-7265-0

摘要

We demonstrate a photon counting laser ranging experiment with a four-channel single-photon detector (SPD) . The multi-channel SPD improve the counting rate more than 4×107 cps, which makes possible for the distance measurement performed even in daylight. However, the time-correlated single-photon counting (TCSPC) technique cannot distill the signal easily while the fast moving targets are submersed in the strong background. We propose a dynamic TCSPC method for fast moving targets measurement by varying coincidence window in real time. In the experiment, we prove that targets with velocity of 5 km/s can be detected according to the method, while the echo rate is 20％ with the background counts of more than 1.2×107 cps.