Reconstruction of Range-Doppler Map Corrupted by FMCW Radar Asynchronization
SCIE
SCOPUS
- Title
- Reconstruction of Range-Doppler Map Corrupted by FMCW Radar Asynchronization
- Authors
- Lee Kyung-Min; Lee In-Seong; Shin Hee-Sub; Ok Jae-Woo; Youn Jae-Hyuk; You Eung-Noh; Yang Jong-Ryul; Kim Kyung-Tae
- Date Issued
- 2023-06
- Publisher
- Multidisciplinary Digital Publishing Institute (MDPI)
- Abstract
- Frequency-modulated continuous wave (FMCW) radar system synchronization using external clock signals can cause repeated Range-Doppler (R-D) map corruption when clock signal asynchronization problems occur between the transmitter and receiver. In this paper, we propose a signal processing method for the reconstruction of the corrupted R-D map owing to the FMCW radar's asynchronization. After calculating the image entropy for each R-D map, the corrupted ones are extracted and reconstructed using the normal R-D maps acquired before and after the individual maps. To verify the effectiveness of the proposed method, three target detection experiments were conducted: a human target detection in an indoor environment and a wide place and a moving bike-rider target detection in an outdoor environment. The corrupted R-D map sequence of observed targets in each case was reconstructed properly and showed the validity by comparing the map-by-map range and speed changes in the detected target with the ground-truth information of the target.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/120475
- DOI
- 10.3390/s23125605
- ISSN
- 1424-8220
- Article Type
- Article
- Citation
- Sensors, vol. 23, no. 12, 2023-06
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- There are no files associated with this item.
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