FMCW 레이더에서의 1D FRI (Finite Rate of Innovation) 초고해상도 기법 적용 및 분석 Application and Analysis of 1D FRI (Finite Rate of Innovation) Super-resolution Technique in FMCW Radar

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Recently, as Intelligent Transportation System (ITS) and self-driving system become influential in theground transportation system, automotive radar systems have been actively studied among the various radar systems toimplement the vehicle collision detection system and distance measurement system between vehicles. Most of theautomotive radars are Frequency Modulated Continuous Wave (FMCW) radar type which can calculate distance andvelocity of target by estimating the frequency difference between the transmitted signal and received signal. Therefore,accurate frequency estimation is very important in the FMCW radar system. For this reason, to improve themeasurement accuracy of the FMCW radar, Reverse Directional FRI (RD-FRI) Super-Resolution technique which hashigh frequency estimation accuracy is applied to the FMCW radar system. The feasibility of the proposed technique isevaluated with simulation results and compared with FFT and conventional Super-Resolution techniques. Thesimulation results show that the proposed technique estimates the frequency with high accuracy and the distance withcentimeter accuracy.
Publisher
한국자동차공학회
Issue Date
2014-11
Language
Korean
Citation

한국자동차공학회 논문집, v.22, no.7, pp.31 - 39

ISSN
1225-6382
URI
http://hdl.handle.net/10203/195509
Appears in Collection
GT-Journal Papers(저널논문)
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