多方向偏振光实时定位样机的设计与搭建

褚金奎; 张慧霞; 王寅龙; 时超

doi:doi:10.3788/ope.20172402.0312

光学精密工程, 2017, 25 (2): 312, 网络出版: 2017-03-29

多方向偏振光实时定位样机的设计与搭建

Design and construction of autonomous real-time position prototype based on multi-polarized skylight

论文大纲

褚金奎 ^*张慧霞王寅龙时超

作者单位

大连理工大学机械工程学院, 辽宁大连 116023

偏振光学实时定位天空偏振光自主式导航 polarization optics real-time position skylight polarization autonomous navigation LabVIEW LabVIEW

摘要

为了提高偏振光导航定位的可靠性和实时性, 提出了一种利用多方向偏振光的自主式导航定位方法并搭建了样机。通过样机多方向阵列结构中的偏振光导航传感器实时检测天空多个方向的偏振光信息, 并对这些信息进行优选和融合处理, 计算得到更加可靠且准确的太阳空间位置。最后根据太阳空间位置, 结合时间和地磁场分布信息, 计算样机所在位置的经纬度, 实现实时定位。基于可视化软件LabVIEW编写样机上位机程序, 能够实时采集样机中传感器数据, 同步处理计算且实时显示载体地点经纬度, 数据更新率可达10 Hz。静态测试结果表明, 定位样机性能稳定, 经度方向上的定位精度为±0.4°, 纬度方向上为±1.2°, 定位精度较高, 可应用于实际导航。

Abstract

In order to improve the reliability and real-time performance of polarized skylight navigation, a independent position method based on multi-polarized lights was proposed and a navigation prototype was constructed. The prototype included five polarized light sensors, which were arranged in multi-direction array for the detection of polarization information in multiple directions of the sky. With the polarization information optimized and converged, the sun spatial position information was calculated more reliably and accurately. Finally, the position information of the prototype was determined according to the sun spatial position information, the time and the geomagnetic field information, thus realizing real-time position. The PC program of the prototype completed by LabVIEW can collect and process the date from the sensors in real time, meanwhile calculate and display the longitude and latitude of the location of the prototype synchronously, with a data update rate up to 10 Hz. The test results show that position accuracies are ±0.4° and ±1.2° in longitude and latitude respectively, which indicate that the navigation prototype is feasible and stable and can be applied to real navigations.

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褚金奎, 张慧霞, 王寅龙, 时超. 多方向偏振光实时定位样机的设计与搭建[J]. 光学精密工程, 2017, 25(2): 312. CHU Jin-kui, ZHANG Hui-xia, WANG Yin-long, SHI Chao. Design and construction of autonomous real-time position prototype based on multi-polarized skylight[J]. Optics and Precision Engineering, 2017, 25(2): 312.

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