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학술지 Method to Improve Degraded Range Resolution Due to Non-ideal Factors in FMCW Radar
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저자
원유선, 신동승, 정소희, 이재호, 이철효, 박미룡, 송윤정, 문기영, 서동욱
발행일
201901
출처
IEICE Electronics Express, v.16 no.1, pp.1-6
ISSN
1349-2543
출판사
일본, 전자정보통신학회 (IEICE)
DOI
https://dx.doi.org/10.1587/elex.15.20180924
협약과제
18ZD1100, 대경권 지역산업 기반 ICT융합기술 고도화 지원사업, 문기영
초록
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.
키워드
FMCW, Non-negative least-squares method, Radar, Range resolution, Signal bandwidth
KSP 제안 키워드
5 GHz, Center frequency, Least Squares(LS), Least squares method, Non-ideal factors, Non-negative, Post-processing method, Range resolution, corner reflector, fmcw radar, radar cross section