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논문 기본 정보

자료유형
학술저널
저자정보
Sangdong Kim (Daegu Gyeongbuk Institute of Science & Technology) Bongseok Kim (Daegu Gyeongbuk Institute of Science & Technology) Youngseok Jin (Daegu Gyeongbuk Institute of Science & Technology) Jonghun Lee (Daegu Gyeongbuk Institute of Science & Technology)
저널정보
한국전자파학회JEES Journal of Electromagnetic Engineering And Science Journal of Electromagnetic Engineering And Science Vol.21 No.1
발행연도
2021.1
수록면
23 - 34 (12page)

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This paper proposes a super-resolution-based direction-of-arrivals (DOA) estimation with wide array distance and extrapolation for vital frequency-modulated continuous-wave (FMCW) radar. Most super-resolution algorithms employ the distance between adjacent arrays of half a wavelength, i.e., λ/2. Meanwhile, in the case of narrow field of view of FMCW radar, the resolution of the angle is maintained by increasing the spacing between the arrays even if the number of arrays decreases. In order to employ these characteristics of array spacing and resolution, the proposed algorithm confirms whether or not to use the case where the distance between the adjacent arrays is greater than λ/2. In the case of an array distance >λ/2, a super-resolution algorithm is performed to obtain the enhanced DOA resolution. Moreover, the proposed algorithm virtually generates data between antennae by using extrapolation in order to further improve the performance of the resolution. The simulation results show that the proposed algorithm achieves the results of root-mean-square error similar to conventional super-resolution algorithms while maintaining low complexity. In order to further verify the performance of the proposed estimation algorithm, we demonstrate its employment in practice: experiments in a chamber room and an indoor room were conducted.

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Abstract
Ⅰ. INTRODUCTION
Ⅱ. SIGNAL MODEL
Ⅲ. PROPOSED SUPER-RESOLUTION DOA ESTIMATION OF VITAL FMCW RADAR
Ⅳ. SIMULATIONS
Ⅴ. EXPERIMENTS
Ⅵ. CONCLUSION
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