光谱可调星模拟器技术研究

发布时间：2018-06-30 05:02

本文选题：光谱可调 + 多星等　；参考：《中国科学院研究生院(西安光学精密机械研究所)》2015年硕士论文

【摘要】：随着星敏感器的发展,对作为星敏感器的产物星模拟器也提出了更高的应用需求。目前国内外研制的星模拟器多为单星等模拟器或多星等单光谱模拟器,对恒星的光谱特性模拟较少,且恒星光源系统的标定也都为手动标定,标定周期长而且光源稳定性不好,因而其应用受到限制。因此有必要研制一种光谱可调的星模拟器以满足目前多样化的星敏感器的应用需求。本论文以光谱可调星模拟器为研究背景,主要对光谱可调星模拟器的恒星模拟光源的实现进行认真详细的分析与研究。因此,本论文主要从以下几方面展开:首先对国内外有关星模拟器的研究进行总结分析,借鉴之前的有关研究项目,从辐度学和色度学的基础知识出发,基于最小二乘法,提出了一种以白光LED光源为主体,多种LED进行光谱补偿的星模拟器光源系统实现方法,并利用MATLAB对此方法进行了理论和实验性模拟仿真;其次设计并完成了双积分球结构的星模拟器光源系统,并基于VC++编写光源系统控制软件,完成目标光谱的自动模拟和稳定输出;在实验室对整个光源系统进行装配和调试,并与相应光学系统形成完整的光谱可调星模拟器;最后对整个系统进行了精度测试和稳定性测试,对测试结果进行了分析,并结合本文研究过程中遇到的问题进行了相关的实验改进,总结经验,对以后的工作提出了进一步的改进措施和展望。
[Abstract]:With the development of star sensor, the application requirement of star simulator, which is the product of star sensor, is put forward. At present, most of the star simulators developed at home and abroad are single-star simulator or multi-star single-spectral simulator. The simulation of star spectral characteristics is less, and the calibration of star light source system is manual calibration, the calibration period is long and the stability of light source is not good. Therefore, its application is limited. Therefore, it is necessary to develop a star simulator with adjustable spectrum to meet the needs of various star sensors. Based on the spectral tunable star simulator, the realization of the star simulation light source of the spectral tunable star simulator is analyzed and studied in detail in this paper. Therefore, this thesis is mainly carried out from the following aspects: firstly, the research on satellite simulator at home and abroad is summarized and analyzed. The basic knowledge of radiology and chromaticity is used for reference, based on the least square method. In this paper, a method of realizing the light source system of the satellite simulator with white LED light source as the main source and various LED spectral compensation is proposed, and the theoretical and experimental simulation of the method is carried out by using MATLAB. Secondly, the light source system of the star simulator with double integral sphere structure is designed and completed, and the control software of the light source system based on VC is written to accomplish the automatic simulation and stable output of the target spectrum, and the whole light source system is assembled and debugged in the laboratory. A complete spectral adjustable star simulator is formed with the corresponding optical system. Finally, the accuracy and stability of the whole system are tested, and the test results are analyzed. Combined with the problems in the course of this study, this paper has carried on the related experimental improvement, summarized the experience, proposed the further improvement measure and the prospect to the future work.
【学位授予单位】：中国科学院研究生院(西安光学精密机械研究所)
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：V448.2

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