상세정보
학술지
Joint Angle, Velocity, and Range Estimation Using 2D MUSIC and Successive Interference Cancellation in FMCW MIMO Radar System
- 발행일
- 202003
- 출처
- IEICE Transactions on Communications, v.E103-B no.3, pp.283-290
- ISSN
- 0916-8516
- 출판사
- 일본, 전자정보통신학회 (IEICE)
- 협약과제
- 18ZR1400, 자율주행 자동차를 위한 주야/전천후 비디오 SAR 기술 연구, 황성현
- 초록
- To estimate angle, velocity, and range information of multiple targets jointly in FMCW MIMO radar, two-dimensional (2D) MUSIC with matched filtering and FFT algorithm is proposed. By reformulating the received FMCW signal of the colocated MIMO radar, we exploit 2D MUSIC to estimate the angle and Doppler frequency of multiple targets. Then by using a matched filter together with the estimated angle and Doppler frequency and FFT operation, the range of the target is estimated. To effectively estimate the parameters of multiple targets with large distance differences, we also propose a successive interference cancellation method that uses the orthogonal projection. That is, rather than estimating the multiple target parameters simultaneously using 2D MUSIC, we estimate the target parameters sequentially, in which the parameters of the target having strongest reflected power are estimated first and then, their effect on the received signal is canceled out by using the orthogonal projection. Simulations verify the performance of the proposed algorithm.
- KSP 제안 키워드
- Doppler Frequency, FFT algorithm, FMCW signal, Joint angles, Large distance, Orthogonal projection(QR), Radar System, Range estimation, Successive Interference Cancellation, colocated MIMO radar, matched filter(MF)