Photon counting range-finder for moving target detection

Xianjiang Zeng; Hui Yu; Weichao Du; Ming Chen

doi:10.1117/12.2624278

27 March 2022 Photon counting range-finder for moving target detection

Xianjiang Zeng, Hui Yu, Weichao Du, Ming Chen

Proceedings Volume 12169, Eighth Symposium on Novel Photoelectronic Detection Technology and Applications; 121694Z (2022) https://doi.org/10.1117/12.2624278
Event: Eighth Symposium on Novel Photoelectronic Detection Technology and Applications, 2021, Kunming, China

Abstract

The time-of-flight method is widely used to measure the range of the targets directly. As the retro-reflected light is so weak in ultra-long-distance measurement, the measurement technique based on the single-photon detector (SPD) and the time-correlated single-photon counting (TCSPC) has been engaged in earth-satellite measurements and altimetry measurements for airborne platforms. But this technique is difficult to applied to dynamic target measuring, especially when the target is moving fast under significant background noise. In this paper, we develop a photon counting system for long-range small dynamic target such as aircraft. This system is based on a dynamic TCSPC method based on point-line duality which has been reported in our early work. Outdoor experiments were conducted to evaluate the ranging ability of our system. The experimental results that the laser ranging system can detect the moving Quadrotor UAV 3.6km away (emission optical attenuation 42.2dB) and the building 21km away (emission optical attenuation 26dB). Through equivalent calculation, it is equivalent to the range measurement of aircraft over 60km. Meanwhile, the photon-counting range finding system could measure the range and velocity of the small target such as moving Quadrotor UAV simultaneously. In addition, all the measurements of our range finding system was in real time.

Citation Download Citation

Xianjiang Zeng, Hui Yu, Weichao Du, and Ming Chen "Photon counting range-finder for moving target detection", Proc. SPIE 12169, Eighth Symposium on Novel Photoelectronic Detection Technology and Applications, 121694Z (27 March 2022); https://doi.org/10.1117/12.2624278

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