天基多谱段空间目标成像系统研究

发布时间：2018-03-06 01:25

本文选题：空间光学　切入点：多谱段成像　出处：《哈尔滨工业大学》2012年硕士论文　论文类型：学位论文

【摘要】：天基空间目标成像旨在天基平台上，运用空间相机（遥感器）对空间目标进行探测、观测与成像。这种成像方式相比地基观测，灵活机动，可对空间目标进行实时全天候观测，，既可以进行军事上的应用，又可以对空间碎片等情况进行预警，具有很好的应用前景。本文对天基多谱段空间目标成像系统进行研究，主要内容包括以下几点：首先，进行了空间目标辐射特性的研究。空间目标辐射的能量是引起成像系统响应的根本原因，本文对空间目标的可见光特性与红外特性进行分析研究与计算，为后续成像系统的设计提供依据；其次，分析讨论并确定了成像系统的相关参数，包括光学系统的基本参数与探测器的积分时间范围；在分析选取了探测器后，从系统探测能力的角度，结合已计算出的空间目标辐射特性结果，分析计算了双通道光学系统的有效孔径。最后，完成光学系统设计。根据前期论证的结果，分析光学系统的结构形式，采用RC系统结合棱镜分光的双通道系统；并对光学系统进行像质评价与公差分析。本文是对天基空间目标成像系统总体设计的研究。
[Abstract]:Space-based space target imaging is aimed at detecting, observing and imaging space targets by using space cameras (remote sensors) on space-based platforms. This imaging method is more flexible than ground-based observation and can be used for real-time all-weather observation of space targets. It can be used not only in military applications, but also in early warning of space debris. In this paper, the space-based multispectral space target imaging system is studied. The main contents are as follows:. Firstly, the radiative characteristics of space targets are studied. The radiation energy of space targets is the fundamental reason for the response of the imaging system. In this paper, the visible and infrared characteristics of space targets are analyzed and calculated. To provide the basis for the design of the follow-up imaging system; Secondly, the relevant parameters of the imaging system are discussed and determined, including the basic parameters of the optical system and the integral time range of the detector. Based on the calculated radiation characteristics of space targets, the effective aperture of two-channel optical system is analyzed and calculated. Finally, the optical system design is completed. According to the results of the previous demonstration, the structure of the optical system is analyzed, and the RC system combined with prism is used to separate the light, and the image quality evaluation and tolerance analysis of the optical system are carried out. In this paper, the overall design of space-based space target imaging system is studied.
【学位授予单位】：哈尔滨工业大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：P171

【参考文献】