由中国航天科技集团公司中国空间技术研究院所属北京航天空间机电研究所研制的多通道光子计数体制激光雷达原理样机完成了昼夜外场测试,标志着该研究所在激光探测领域取得突破性进展。传统的激光雷达采用线性探测体制,探测灵敏度低,每次回波信号需要数千个光子,激光发射重频低、能量高、波束数量少,仅能满足稀疏采样点的测量要求。该研究所研制的采用光子计数体制的 The multi-channel photon counting system laser radar prototype developed by the China Aerospace Technology Institute of China Academy of Space Technology under the China Aerospace Science and Technology Corporation has completed day and night field tests, marking a breakthrough in the field of laser detection. The traditional laser radar adopts a linear detection system with low detection sensitivity. Each echo signal requires several thousand photons. The laser emission has a low repetition frequency, high energy, and a small number of beams, and can only meet the measurement requirements of sparse sampling points. Photon counting system developed by the institute