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1.西安理工大学 自动化与信息工程学院, 陕西 西安 710048
2.陕西省复杂系统控制与智能信息处理重点实验室(西安理工大学), 陕西 西安 710048
[ "赵太飞(1978-), 男, 河南浚县人, 博士, 教授, 2007年于成都电子科技大学获得博士学位, 2008—2010年完成西安理工大学电子科学与技术博士后流动站工作, 主要从事紫外光通信技术、路由技术、网络抗毁性技术、物联网技术等方面的研究.E-mail:zhaotaifei@163.com" ]
[ "余叙叙(1991-), 男, 河南信阳人, 硕士研究生, 2015年于西安理工大学获得学士学位, 主要从事紫外光通信技术、物联网技术的研究.E-mail:yxx@xaut.edu.cn" ]
收稿日期:2017-05-18,
录用日期:2017-6-15,
纸质出版日期:2017-09-25
移动端阅览
赵太飞, 余叙叙, 包鹤, 等. 无线日盲紫外光测距定位方法[J]. 光学 精密工程, 2017,25(9):2324-2332.
Tai-fei ZHAO, Xu-xu YU, He BAO, et al. Ranging and positioning method using wireless solar blind ultraviolet[J]. Optics and precision engineering, 2017, 25(9): 2324-2332.
赵太飞, 余叙叙, 包鹤, 等. 无线日盲紫外光测距定位方法[J]. 光学 精密工程, 2017,25(9):2324-2332. DOI: 10.3788/OPE.20172509.2324.
Tai-fei ZHAO, Xu-xu YU, He BAO, et al. Ranging and positioning method using wireless solar blind ultraviolet[J]. Optics and precision engineering, 2017, 25(9): 2324-2332. DOI: 10.3788/OPE.20172509.2324.
在无人机的自主飞行及着陆引导中
测距与定位是其中的关键问题。本文提出了一种基于无线紫外光的测距定位方法
对无线紫外光直视通信模型和非直视通信模型进行了分析
推导出直视和非直视情况下的距离计算公式。根据四节点定位算法
可以解出未知节点的位置坐标。使用波长为255 nm的"日盲"紫外LED及光电倍增管作为收发器件
测距信号采用10 kHz的方波信号
在不同天气情况下进行测距实验。实验结果表明:在直视情况下
被测距离真值为0~100 m的测距误差均小于5 m;在非直视情况下
由于多径散射的影响
有效测距距离降为0~70 m。当发送仰角和接收仰角均小于10°时
测距误差较小
均小于5 m
当发送仰角和接收仰角均大于10°时
随着发送仰角和接收仰角的增大
有效测距距离明显降低。总的来说
该算法有着较高的精度
在GPS无法正常使用时能够为无人机提供导航数据
基本能够满足自主降落和飞行引导的要求。
In order to solve the problem of positioning in UAV flight and landing guidance scene
this paper presented a ranging and positioning method based on wireless ultraviolet lights. The method analyzed communication models of wireless ultraviolet Line of Sight(LOS) and Non-Line-of-Sight(NLOS)
thus deriving the distance algorithm for LOS and NLOS communications. The location coordinates of unknown nodes were solved by the four node localization algorithm. Using a 255 nm UV LED as the light source
a PMT as the receiving device and a 10 kHz square wave signal as the ranging signal
ranging experiments under different weather conditions were performed. The experimental results indicate that the ranging error is less than 5 m in LOS communication with the ranging distance of 0~100 m. In NLOS communication
the effective ranging distance is reduced to 0~70 m due to the influence of multipath scattering. When the transmitting elevation and receiving elevation is less than 10°
the ranging error is less than 5 m
otherwise the effective distance decreased significantly with the increase of transmitting and receiving elevations. In general
the algorithm can provide navigation data for unmanned aerial vehicles with a high accuracy when the GPS cannot work normally
thus can meet the requirements of autonomous landing and flight guidance.
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周俊鹏, 陈健, 李焱, 等.舰载光电跟踪设备的目标预测算法研究[J].光学 精密工程, 2017, 25(2):519-528.
ZHOU J P, CHEN J, LI Y, et al.. Research on target prediction algorithm of shipboard photoelectric tracking equipment [J]. Opt. Precision Eng., 2017, 25(2):519-528. (in Chinese)
宋鹏, 柯熙政, 熊扬宇, 等.紫外光非直视非共面通信中脉冲展宽效应研究[J].光学学报, 2016, 36(11):1106004.
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