Improved Drone Classification Using Polarimetric Merged-Doppler Images
- Authors
- Kim, Byung Kwan; Kang, Hyun-Seong; Lee, Seongwook; Park, Seong-Ook
- Issue Date
- Nov-2021
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Radar imaging; Drones; Radar polarimetry; Airborne radar; Radar cross-sections; Image color analysis; Convolutional neural network (CNN); micro-Doppler signature (MDS); radar signal analysis; radar signal processing
- Citation
- IEEE GEOSCIENCE AND REMOTE SENSING LETTERS, v.18, no.11, pp 1946 - 1950
- Pages
- 5
- Journal Title
- IEEE GEOSCIENCE AND REMOTE SENSING LETTERS
- Volume
- 18
- Number
- 11
- Start Page
- 1946
- End Page
- 1950
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/70077
- DOI
- 10.1109/LGRS.2020.3011114
- ISSN
- 1545-598X
1558-0571
- Abstract
- We propose a drone classification method for polarimetric radar, based on convolutional neural network (CNN) and image processing methods. The proposed method improves drone classification accuracy when the micro-Doppler signature is very weak by the aspect angle. To utilize received polarimetric signal, we propose a novel image structure for three-channel image classification CNN. To reduce the size of data from four different polarization while securing high classification accuracy, an image processing method and structure are introduced. The data set is prepared for a three type of drone, with a polarimetric Ku-band frequency modulated continuous wave (FMCW) radar system. Proposed method is tested and verified in an anechoic chamber environment for fast evaluation. A famous CNN structure, GoogLeNet, is used to evaluate the effect of the proposed radar preprocessing. The result showed that the proposed method improved the accuracy from 89.9% to 99.8%, compared with single polarized micro-Doppler image. We compared the result from the proposed method with conventional polarimetric radar image structure and achieved similar accuracy while having half of full polarimetric data.
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Collections - College of ICT Engineering > School of Electrical and Electronics Engineering > 1. Journal Articles
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