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摘要在空间偏振编码技术中，空间编码产生具有规律偏振态的光场，导弹在光场中运动时，可通过接收到的偏振光偏振态确定其位置信息。而本论文则主要研究了这种空间偏振编码信号的检测技术，分析了偏振光的几种参量的表示方式，选择了最适合的椭圆偏振光参量的表示方法，分析了偏振光的常规测量技术和高速实时测量技术的原理，构建了接收该光场中偏振光的高速实时测量的接收并测量偏振光的光学系统的实验装置，并对装置的器件1/4波片、偏振分束棱镜等的作用和选用理由进行了详细的阐述。分析了设计的光学系统在实验过程中可能出现的误差来源和处理方式，利用差和比的数据处理方式抵消了导弹自旋转对测量结果的影响。根据空间编码的原理，推算出了测量出的偏振光状态和光场坐标之间的关系，找出最合适的数据处理方式，将检测出的偏振光信息化为直观的光场坐标，将测得的数据和实际联系起来。6241
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关键词 空间偏振编码信号 椭圆偏振光 高速实时测量 偏振分束棱镜 琼斯矩阵
毕业设计说明书（论文）外文摘要
Title Design of the Optic System to Recognize and Measure the Polarized Light Dynamically
Abstract
In the study of the spatial polarization encoding technology, the light field of the regular polarization state is created. When missile travels in the light field, the information of polarization can be used to determine the information of location. Therefore, a technique that used to measure the signal of the spatial polarization encoding is studied in this paper. Several parameters of the representation of polarized light is analyzed to choose the most suitable representation of the parametric which is used to describe the nature of elliptically polarized light. Comparison between the techniques of the conventional measurement and techniques of high-speed & real-time measurement polarized light has been analyzed. What’s more, the device of the optical receiving system which uses the high-speed & real-time measurement has been constructed. Some components of the optical receiving system, such as 1/4 wave plate, polarization beam splitting prism is introduced in detail. Furthermore, the error of the optical system is described. A method to deal with the data of experiment which can offset the effect of the missile’s rotation is raised. The method to deduct the coordinates of light filed which correspond to the polarization state of light is put forward.
Keywords spatial polarization encoding elliptically polarized light high-speed & real-time measurement polarization beam splitter prism Jones matrix
目录
1. 绪论 1
1.1 引言 1
1.2 选题背景 2
1.3 本文研究内容 2
2. 偏振光的基本知识 4
2.1 偏振光的基本参数介绍 4
2.2偏振光的矩阵表示方式 6
3. 目标光场的分析 9
3.1 目标光场的获得 9
3.2 目标光场的性质 10
4. 光学系统设计 12
4.1 偏振光的测量原理 12
4.2 光学系统的设计 13
4.3 影响接收系统的因素 22
4.3.5 其他误差 26
5. 光场坐标与偏振态的关系 27