天基单光子激光雷达危险空间碎片探测仿真
发布时间：2018-11-19 19:26
【摘要】：危险空间碎片的探测与监控一直是空间碎片探测的重点与难点,现有的技术还不能实现对危险空间碎片的有效监测与定轨。针对危险空间碎片的探测,研究了一种主动式天基激光雷达探测方式。该方式采用了天基的单光子探测技术,以期实现对几百公里量级的危险空间碎片进行探测。首先简要分析了点目标激光雷达方程,建立了空间环境的背景光噪声模型,探讨了单光子激光雷达的探测概率与虚警率,对激光的回波信号与探测精度进行了理论分析与仿真,最后分析了不同目标的探测能量需求。由理论分析与仿真结果来看,对500 km处的尺寸为10 cm的目标可以实现精度为0.2 m的有效探测。
[Abstract]:The detection and monitoring of dangerous space debris has always been the focus and difficulty of space debris detection. The existing technology can not realize the effective monitoring and orbit determination of dangerous space debris. An active space-based lidar is studied for the detection of dangerous space debris. This method uses space-based single photon detection technology to detect dangerous space debris in the order of several hundred kilometers. Firstly, the point target laser radar equation is briefly analyzed, the background light noise model in space environment is established, the detection probability and false alarm rate of single photon laser radar are discussed, and the theoretical analysis and simulation of the laser echo signal and detection accuracy are carried out. Finally, the detection energy requirements of different targets are analyzed. From the theoretical analysis and simulation results, it can be seen that the target with a size of 10 cm at 500 km can be detected with an effective precision of 0.2 m.
【作者单位】： 武汉大学电子信息学院;地球空间信息技术协同创新中心;
【分类号】：TN958.98
本文编号：2343211
[Abstract]:The detection and monitoring of dangerous space debris has always been the focus and difficulty of space debris detection. The existing technology can not realize the effective monitoring and orbit determination of dangerous space debris. An active space-based lidar is studied for the detection of dangerous space debris. This method uses space-based single photon detection technology to detect dangerous space debris in the order of several hundred kilometers. Firstly, the point target laser radar equation is briefly analyzed, the background light noise model in space environment is established, the detection probability and false alarm rate of single photon laser radar are discussed, and the theoretical analysis and simulation of the laser echo signal and detection accuracy are carried out. Finally, the detection energy requirements of different targets are analyzed. From the theoretical analysis and simulation results, it can be seen that the target with a size of 10 cm at 500 km can be detected with an effective precision of 0.2 m.
【作者单位】： 武汉大学电子信息学院;地球空间信息技术协同创新中心;
【分类号】：TN958.98
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