【摘要】 文章简要介绍了在可见光和红外波段深空和地球高层大气的光辐射源和辐射特性,包括辐射机制和强度、辐射的各向异性等,通过比较表明空间红外波段的背景辐射明显高出可见光波段近1个数量级;分析了在地球大气外进行对地观测时大气辉光辐射的角分布,指出了辐射的临边增亮特性。以上研究对于研制和开发新型航天器、利用太空资源以及未来的深空探测都具有实用价值。更多还原

【Abstract】 This paper briefly discusses the sources of background light emission and optical reflection from space and from upper atmosphere of the earth and their properties in the visible and infrared wavebands,which may be useful for developing technology of space probe and for exploring and exploiting the space.The infrared background from space is shown to be one order of magnitude stronger than that of the visible optical band.The limb brightening nature is identified in on-orbit observations by analyzing the angular distribution of air glow from the earth’s atmosphere.更多还原