Design of high-speed pulse acquisition module for spaceborne single photon detection lidar

Abstract The spaceborne single photon detection lidar adopts single photon detection technology, using a low-energy high repetition rate emitting laser and small aperture receiving system. Compared with traditional spaceborne atmospheric detection lidar systems, it has a smaller volume and weight. By analyzing the working process of spaceborne single photon detection lidar, the indicators of acquisition rate and number of sampling gates were proposed. Based on FPGA, circuit design was carried out. A high-speed pulse acquisition module with a 5MHz pulse sampling rate and 2400 sampling gates was developed. The module was connected to a single photon detection lidar for actual testing.