In order to detect dangerous space non-cooperative targets, we have researched the technology of single photon laser detection. A single photon detection model which includes relative radial velocity between space-based detector and target was proposed, as well as, we analyzed the detection method of non-cooperative targets on a space-based plat-form. The results of simulations show that single photon laser detection can effectively detect the target of the distance 160 km and velocity 5 km/s under the load requirements of the space-based platform, its ranging accuracy could be improved 2~3 orders of magnitude compared with world ground-based traditional detection technology for space non-cooperative targets , and it can effectively reduce the collision probability of spacecraft
During its projected extended stay in LEO, spacecraft will encounter many environmental factors including energetic particles, ultraviolet radiation, atomic oxygen, and space debris and meteoroids, together with some induced environments such as contamination and discharging. These space environments and their effects have threat to the reliability and lifetime of spacecraft. So, it is important to give a combined design against the threat from space environments and their effects. The space environments and effects are reviewed in this paper firstly. Secondly, the design process and method against space environments are discussed. At last, some advices about protective structure and materials are proposed.
Conference Committee Involvement (1)
Selected Proceedings of the Chinese Society for Optical Engineering Conferences held July 2016
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