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http://dx.doi.org/10.5515/KJKIEES.2011.22.11.1070

A Study on Signal Processing of Rear Radars for Intelligent Automobile  

Choi, Gak-Gyu (Department of Electrical Engineering, Pohang University of Science and Technology)
Han, Seung-Ku (Department of Electrical Engineering, Pohang University of Science and Technology)
Kim, Hyo-Tae (Department of Electrical Engineering, Pohang University of Science and Technology)
Kim, Kyung-Tae (Department of Electrical Engineering, Pohang University of Science and Technology)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.22, no.11, 2011 , pp. 1070-1077 More about this Journal
Abstract
This paper introduces a radar signal processing technique for intelligent rear view monitoring of an automobile. The linear frequency modulation-frequency shift keying(LFM-FSK) waveform, which is the combination of frequency modulation continuous wave(FMCW) and frequency shift keying(FSK) waveform, is employed to simultaneously estimate the range, relative aspect angle, and velocity of an automobile. Hence, it can be applied to monitor the rear view of an automobile. FMCW waveform has high range resolution capability, but it produces ghost targets under a multiple target environment. In contrast, FSK waveform can provide high velocity resolution and avoids the problem of ghost targets. However, it fails to identify multiple targets along the radar's line of sight. With LFM-FSK waveform, we can estimate the ranges and velocities of multiple targets with very high resolution, which avoids the ghost target problem of an FMCW waveform. Simulation result shows that LFM-FSK wavefrom is suitable for use in the lane change assistance system for an automobile.
Keywords
Automotive Radar; FMCW; FSK; Waveform Design;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 한석균, "차량 감지용 FMCW 레이더의 단일 평형 다이오드 주파수 혼합기 설계 및 제작", 한국전자파학회논문지, 14(12), pp. 1336-1341, 2003년 12월.   과학기술학회마을
2 Tan-Hsiung Ho, Shyh-Jong Chung, "A compact 24 GHz radar sensor for vehicle sideway-looking applications", European Radar Conference 2005, Eu-RAD 2005, 2005.
3 Zhang Dabiao, Kang Yueyi, and Liu Hongyun, "Design of automobile collision avoidance warning system based on LabVIEW", 8th International Conference on Electronic Measurement and Instruments 2007, ICEMI'07, 2007.
4 Merrill I. Skolnik, Introduction to Radar Systems, McGraw-Hill, 2001.
5 Hermann Rohling, Christof Moller, "Radar waveform for automotive radar systems and applications", Radar Conference 2008 '08 IEEE, pp. 1-4, May 2008.
6 Marc-Michael Meinecke, Hermann Rohling, "Combination of LFMCW and FSK modulation principles for automotive radar systems", German Radar Symposium GRS2000, Berlin, Oct. 2000.
7 Bi Xin, Du Jinsong, "A new wave for range-velocity decoupling in automotive radar", 2010 IEEE 2nd International Conference on Signal Processing Systems( ICSPS), 2010.
8 Hermann Rohling, Marc-Meinecke, "Waveform design principles for automotive radar systems", Radar, CIE International Conference 2001 IEEE, 2001.