基于条纹原理的阵列探测体制激光成像雷达由于其独特的技术优势在激光测绘中具有潜在的应用。介绍了“扫帚”扫描结合条纹原理阵列探测体制激光雷达的仿真及飞行实验研究结果。首先介绍新体制激光雷达仿真平台的建立及典型的仿真结果。利用该仿真平台可指导新体制激光雷达的设计, 并对机载飞行实验参数的设定进行成像效果仿真, 仿真的距离测量精度为0.5 m。最后开展了新体制激光雷达机载飞行实验, 给出了典型地区的原始条纹图像及经过数据处理后的点云图。新体制激光雷达外场实验结果的测距精度优于1 m, 机载飞行实验测距精度结果与仿真分析结果一致, 验证了该仿真系统的正确性。通过与实际被动光学相机成像图像进行比较, 验证了新体制激光雷达在航空测绘等方面的技术可行性。

LiDAR is a potential technology in mapping field. Especially, the LiDAR systems applying streak tube have attracted great attention recently due to their special properties about detection sensitivity and distance resolution. The simulation of the stripe principle array LiDAR system with "broom" scanning and the results of the flight experiment were described. Firstly, the establishment of the new LiDAR simulation platform and the typical simulation results were introduced. The simulation platform can guide the design of the new LiDAR, and simulate the setting of the airborne flight experiment parameters. The simulation result which was based on experimental design parameters was that the distance measuring accuracy of the new LiDAR is 0.5 meters. Finally, the airborne flight experiment of the new LiDAR was carried out, then original streak images of the typical area and the cloud points of the images were given. The result of the airborne flight experiment is that the distance measuring accuracy of the new LiDAR is better than 1 m. The accuracy of airborne flight experiment is consistent with the result of simulation analysis. It proves that the correctness of the simulation system is verified. Compared with the images of the passive optical camera, the technical feasibility of the new LiDAR in aerial mapping is verified.