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학술지 24 GHz FMCW Radar Module for Pedestrian Detection in Crosswalks
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저자
원유선, 신동승, 박미룡, 정소희, 이재호, 이철효, 송윤정
발행일
201905
출처
IEICE Transactions on Electronics, v.E102-C no.5, pp.416-419
ISSN
1745-1353
출판사
일본, 전자정보통신학회 (IEICE)
DOI
https://dx.doi.org/10.1587/transele.2018ECS6019
협약과제
18ZD1100, 대경권 지역산업 기반 ICT융합기술 고도화 지원사업, 문기영
초록
This paper reports a 24 GHz ISM band radar module for pedestrian detection in crosswalks. The radar module is composed of an RF transceiver board, a baseband board, and a microcontroller unit board. The radar signal is a sawtooth frequency-modulated continuous-wave signal with a center frequency of 24.15 GHz, a bandwidth of 200 MHz, a chirp length of 80 μs, and a pulse repetition interval of 320 μs. The radar module can detect a pedestrian on a crosswalk with a width of 4 m and a length of 14 m. The radar outputs the range, angle, and speed of the detected pedestrians every 50 ms by radar signal processing and consumes 7.57 W from 12 V power supply. The size of the radar module is 110 × 70 mm2.
KSP 제안 키워드
15 GHz, 24 GHz FMCW radar, Center frequency, Frequency-Modulated Continuous Wave(FMCW), ISM bands, Micro controller unit(MCU), RF transceiver, Radar signal Processing, continuous wave(CW), pedestrian detection, power supply