FMCW 레이더의 거리 및 속도 오차 향상을 위한 신호처리부 하드웨어 구조 제안

Architecture of Signal Processing Unit to Improve Range and Velocity Error for Automotive FMCW Radar

  • 현유진 (대구경북과학기술원 미래산업융합기술연구부 융합신호처리연구팀) ;
  • 이종훈 (대구경북과학기술원 미래산업융합기술연구부 융합신호처리연구팀)
  • 투고 : 2009.07.07
  • 심사 : 2009.12.14
  • 발행 : 2010.07.01

초록

In this paper, we design the signal processing unit to effectively support the proposed algorithm for an automotive Frequency Modulation Continuous Wave(FMCW) radar. In the proposed method, we can obtain the distance and velocity with improved error depending on each range(long, middle, and short) of the target. Since a high computational capacity is required to obtain more accurate distance and velocity for target in near range, the proposed signal processing unit employs the time de-interleaving and the frequency interpolation method to overcome the limitation. Moreover, for real-time signal processing, the parallel architecture is used to extract simultaneously the distance and velocity in each range.

키워드

참고문헌

  1. P. Venhovens, K. Naab and B. Adiprasito, "Stop and Go Cruise Control," Int. J. Automotive Technology, Vol.1, No.2, pp.61-69, 2000.
  2. H. Rohling and M.-M. Meinecke, "Waveform Design Principles for Automotive Radar Systems," IEEE CIE International Conference on Radar, pp.1-4. 2001.
  3. SupplierBusiness, Market Report : Active Safety System Report, SupplierBusiness, 2007.
  4. A. Wojtkiewicz, J. Misiurewicz, M. Nałecz, K. Jedrzejewski and K. Kulpa, "Two-dimensional Signal Processing in FMCW Radars," staff.elka.pw.edu.pl/-jmisiure/esptr_base/lect_fmcw/kk97fm.pdf
  5. E. Hyun and J.-H. Lee, "Method to Improve Range and Velocity Error using De-interleaving and Frequency Interpolation for Automotive FMCW Radars," International Journal of Signal Processing, Image Processing and Pattern Recognition, Vol.2, No.2, pp.27-37, 2009.
  6. G. M. Brooker, "Understanding Millimetre Wave FMCW Radars," IEEE 1st International Conference on Sensing Technology, pp.152-157, 2005.
  7. B. R. Mahafza, Radar Systems Analysis and Design Using MATLAB, Chapman & Hall/CRC, 2005.
  8. W.-J. Oh, "Design and Implementation of DSP module for Automotive Radar System using FMCW," IEEK, Vol.41, TC No.12, pp.77-84, 2004.
  9. P. Stoica and R. L. Moses, Introduction to Spectral Analysis, Prentice Hall, 1997.