Distance and Visual Angle of Line-of-Sight of a Small Drone
Distance and Visual Angle of Line-of-Sight of a Small Drone
复制标题
小型无人机视距距离和视角
DOI：
10.3390/app10165501
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
Nailiang Li
中科院分区：
文献类型：
--
作者：
K. Li;Changguo Sun;Nailiang Li
确定小型无人机的视线（LOS）距离对于规范无人机操作和考虑公共安全的无人机操作员培训至关重要。进行了小型无人机视轴距离和视角的野外试验。人类参与者被要求在空中的一个预定位置观察无人机。他们用五分制回答是否能看到和听到无人机。结果发现，听觉信号在无人机探测中是微不足道的，因为大多数参与者听不到无人机的声音，而他们在大多数测试地点仍然可以看到无人机。进行逻辑回归分析，以预测视觉捕捉无人机的概率。考虑到视觉检测的“肯定是”和“肯定或可能是”标准，建立了两个模型。这些模型可用于估计视线距离和视角。假设50%的视觉捕捉概率和“肯定或可能是”的标准，没有保护器的Mavic Air无人机的LOS距离和视角分别约为307 m和0.065°。
Determining the distance of the line-of-sight (LOS) of a small drone is essential in both regulating drone operation and drone operator training considering public safety. A field experiment was conducted to determine the LOS distance and visual angle of a small drone. Human participants were requested to observe a drone in one of the predetermined locations in the air. They responded whether they could see and hear the drone using a five-point scale. It was found that auditory signals were insignificant in drone detection because most of the participants could not hear the drone while they could still see the drone in most of the test locations. Logistic regression analyses were conducted to predict the probability of catching the drone visually. Two models were built considering the “definitely yes” and “definitely or probably yes” criteria of visual detection. These models may be used to estimate the LOS distance and visual angle. Assuming a 50% probability of visual catching and the “definitely or probably yes” criterion, the distance and visual angle of the LOS for the Mavic Air drone without a protector were approximately 307 m and 0.065°, respectively.