基于ZYNQ的旋转式偏振光航向角检测系统设计
Design of Course Angle Detection System for Rotating Polarized Light Based on ZYNQ
李怡纲 1李沅 1边宇峰 1任彩鸣 1张朝锋1
作者信息
- 1. 中北大学信息与通信工程学院 太原 030051
- 折叠
摘要
针对成像式偏振光导航的高精度和解算实时性的需求,论文设计了一种基于ZYNQ7020的旋转式偏振光航向角检测系统.研究采取体轴与正北方向重合的方式,实时解算太阳子午线与正北方向夹角,即为航向角.该系统采用高精度无刷电机使偏振镜以固定角度旋转,同时进行曝光,相机从不同的角度拍摄了三张偏振图像,采取三张偏振图像为一组的流水线处理方式,进行解算航向角.在室外晴空少云条件下,该系统的最大误差为1.65°,平均误差为0.34°.实验结果表明,在精度和可靠性方面,论文设计的偏振光航向角检测系统都有良好的表现,可以实时进行偏振光采集解算太阳子午线位置以及航向角.
Abstract
In order to meet the requirement of high precision and real-time calculation in image-polarized navigation,a ZYNQ7020 based rotating polarized light course angle detection system is designed in this paper.In order to facilitate the study,the body axis coincides with the true north direction,and the position of the solar meridian is calculated in real time.The angle between the solar meridian and the true north direction is the heading angle.The system uses a high-precision brushless motor to rotate the polarizer at a fixed angle and expose it at the same time.Three polarizing images from different angles are captured by the camera,and the three polarizing images are processed as a group to calculate the heading angle.The maximum error of the system is 1.65° and the average error is 0.34°in the outdoor clear sky with few clouds.The experimental results show that the polarized light heading angle detection system designed in this paper has good accuracy and reliability.It can collect polarized light and calculate the posi-tion of the solar meridian and heading angle in real time.
关键词
偏振光/ZYNQ7020/无刷电机/图像处理/航向角Key words
polarized light/ZYNQ7020/brushless motor/image processing/course angle引用本文复制引用
基金项目
山西省科技成果转化引导专项(202204021301044)
出版年
2024
国家科技期刊平台
NSTL
万方数据