In-flight RCS measurements of drones and birds at K-band and W-band
In-flight RCS measurements of drones and birds at K-band and W-band
复制标题
DOI：
10.1049/iet-rsn.2018.5122
复制
发表时间：
2019-02-01
影响因子：
1.7
通讯作者：
Robertson, Duncan Alexander
中科院分区：
文献类型：
--
作者：
Rahman, Samiur;Robertson, Duncan Alexander
本文介绍了从大量的实验中获得的无人机和鸟类在K波段和W波段的飞行雷达截面（RCS）数据。本研究的重点是在实际场景中展示这些目标的RCS特性，因此仅使用实验结果。由于方位、方位角和目标运动的变化，这些目标的RCS测量值在其飞行过程中波动很大。三个校准良好的调频连续波雷达系统，一个工作在K波段（24 GHz），两个工作在W波段（94 GHz），已被用来收集数据进行RCS分析。三种不同尺寸的无人机（DJI Phantom 3 Standard、DJI Phantire 1和DJI S900 Hexacopter）和四种不同尺寸的猛禽（北方鹰鸮、哈里斯鹰、印度鹰鸮和黄褐色鹰）已被用于数据收集。结果表明，RCS的尺度与目标的大小，符合光学散射制度，每个目标的RCS值是可比的K波段和W波段。各目标RCS的统计分布福尔斯一定的范围内，这对预测无人机探测雷达的性能是有用的。
This study presents the in-flight radar cross-section (RCS) data of drones and birds at K-band and W-band obtained from extensive experimental trials. The focus of this study is to demonstrate the RCS characteristics of these targets in practical scenarios, hence experimental results are used exclusively. Owing to variations in orientation, aspect angle and target motion, the measured RCS values of these targets fluctuate significantly during their flight. Three very well-calibrated frequency modulated continuous wave radar systems, one operating at the K-band (24 GHz) and two at W-band (94 GHz), have been used to collect data for RCS analysis. Three drones of different sizes (DJI Phantom 3 Standard, DJI Inspire 1 and DJI S900 Hexacopter) and four birds of prey of different sizes (Northern Hawk Owl, Harris Hawk, Indian Eagle Owl and Tawny Eagle) have been used for data collection. The results demonstrate that the RCS scales broadly with the size of the target, consistent with the optical scattering regime and that the RCS values for each target are comparable at the K-band and the W-band. The statistical distribution of RCS for each target falls within a certain range which is useful for predicting the performance of a drone detection radar.