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Journal Article
Method to Improve Degraded Range Resolution Due to Non-ideal Factors in FMCW Radar
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- Authors
- You-Sun Won, Dongseung Shin, Sohee Jung, Jaeho Lee, Cheolhyo Lee, Miryong Park, Yunjeong Song, Kiyoung Moon, Dongwook Seo
- Issue Date
- 2019-01
- Citation
- IEICE Electronics Express, v.16, no.1, pp.1-6
- ISSN
- 1349-2543
- Publisher
- 일본, 전자정보통신학회 (IEICE)
- Language
- English
- Type
- Journal Article
- Abstract
- This paper reports a method to improve a degraded range resolution for FMCW radar. The proposed post-processing method can achieve an improved range resolution without increasing a signal bandwidth by eliminating factors that can degrade the range resolution based on the non-negative least-squares method. For an FMCW radar adopting the post-processing method with the center frequency of 76.5 GHz and the signal bandwidth of 200 MHz, simulation results show that the degraded range resolution of 160 cm is improved to 70 cm, and measurements show that two corner reflectors with the radar cross section of 10 dBsm located at 70 cm range intervals can be distinguished.
- KSP Keywords
- 5 GHz, Center frequency, FMCW Radar, Least Square(LS), Least-squares method(LSM), Non-Negative, Post-processing method, Radar Cross Section(RCS), Range resolution, corner reflector, non-ideal factors