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Content Provider | IET Digital Library |
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Author | Patel, Jarez S. Ameri, Caesar Al Fioranelli, Francesco Anderson, David |
Abstract | This article presents an analysis of three multi-domain transformations applied to radar data of a micro-drone operating in an open field, with a payload (between 200 and 600 g) and without a payload. Inferring the presence of a drone attempting to transport a payload beyond its normal operating conditions is a key enabler in prospective low altitude airspace security systems. Two scenarios of operation were explored, the first with the drone hovering and the second with the drone flying. Both were accomplished through real experimental trials, undertaken with the multistatic radar, NetRAD. The images generated as a result of the domain transformations were fed into a pretrained convolutional neural network (CNN), known as AlexNet and were treated as a six-class classification problem. Very promising accuracies were obtained, with on average 95.1% for the case of the drone hovering and 96.6% for the case of the drone flying. The activations that these variety of images triggered within the CNN were then visualised to better understand the specific features that the network was learning and distinguishing between, in order to successfully achieve classification. |
Starting Page | 7047 |
Ending Page | 7051 |
Page Count | 5 |
Volume Number | 2019 |
e-ISSN | 20513305 |
Issue Number | Issue 20, Oct (2019) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/joe/2019/20 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/joe.2019.0551 |
Journal | The Journal of Engineering |
Publisher | The Institution of Engineering and Technology |
Publisher Date | 2019-07-11 |
Access Restriction | Open |
Rights License | Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/) |
Subject Keyword | Aerospace Control AlexNet Autonomous Aerial Vehicle CNN Computer Vision And Image Processing Technique Convolutional Neural Nets Domain Transformations Drone Hovering Image Classification Image Recognition Learning in AI Mathematical Analysis Microdrone Mobile Robots Multidomain Transformations Multistatic Radar Multitime Frequency Analysis NetRAD Neural Computing Technique Normal Operating Condition Open Field Pretrained Convolutional Neural Network Prospective Low Altitude AirSpace Security System Radar Application Radar Data Six-class Classification Problem Telerobotics Time-frequency Analysis |
Content Type | Text |
Resource Type | Article |
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