中国激光, 2014, 41 (s1): s108005, 网络出版: 2014-07-03
基于200 Hz重复率高功率全固态激光器空间碎片激光测距试验 下载: 584次
Experiment of Laser Ranging to Space Debris Based on High Power Solid-State Laser System at 200 Hz Repetition Rate
激光技术 激光测距 空间碎片 高重复率全固态激光器 测量试验 laser technique laser ranging space debris high repetition rate solid-state laser measuring experiment
摘要
空间碎片已成为影响在轨航天器安全的重要因素。激光测距对开展空间碎片轨道精确测定、精密编目及监测预警等具有重要作用。根据激光测距雷达方程,分析了不同重复率和功率激光器的激光回波信号探测情况。将200 Hz重复率、50 W功率全固态激光器应用于空间碎片测量,配合低噪声探测器、纳秒控制精度距离门产生器及高效率光谱滤波器等,实现了空间碎片高成功率观测,所测量的目标中最小截面积达0.5 m2、最远距离超过2100 km,表现出良好性能和测量效果。验证了高重复率、低脉冲能量激光器对空间碎片测量可行性,为后续高重复率空间碎片激光测距技术的发展与应用提供了指导。
Abstract
Space debris becomes vital factors threatening the safety of working spacecrafts on orbit. The laser ranging technology will play an important role in precise measuring orbits, accurate cataloging, surveillance and forewarning to space debris. Based on the laser link equation, the analysis of laser echo signal detection from different power lasers with different working frequencies is performed. The 50 W power diode pumped solid-state laser system with 200 Hz repetition rate is applied to observe space debris. Combining with the low dark noise detector, range gate generator with the nanosecond controlling precision and high efficient spectral filter, the measurement to space debris with high success rate are realized. Among the measured targets, the minimum cross section is about 0.5 m2 and the farthest distance is more than 2100 km. The results show that the laser ranging system has good performance while using the high power, high repetition rate laser and verify the feasibility of high repetition rate, low pulse energy laser to observe space debris. The results are helpful for the development and application of space debris laser ranging technology with high repetition rate in the future.
张忠萍, 张海峰, 吴志波, 李朴, 孟文东, 陈菊平, 庞毓. 基于200 Hz重复率高功率全固态激光器空间碎片激光测距试验[J]. 中国激光, 2014, 41(s1): s108005. Zhang Zhongping, Zhang Haifeng, Wu Zhibo, Li Pu, Meng Wendong, Chen Juping, Pang Yu. Experiment of Laser Ranging to Space Debris Based on High Power Solid-State Laser System at 200 Hz Repetition Rate[J]. Chinese Journal of Lasers, 2014, 41(s1): s108005.