access icon free Approach of 2D direction of arrival estimation of FMCW traffic radar by utilising 1D array

The frequency-modulated continuous wave (FMCW) radar will play a more important role in future intelligent traffic systems due to low cost and high adaptability to complex environments. Generally, a 2D array is utilised to measure range, speed and azimuth and elevation angles (4D) for multiple vehicles simultaneously. However, a traffic radar utilising a 2D array will enhance its system complexity; therefore, the increased cost would make it less superior to LiDAR. In this Letter, an azimuth and elevation angles estimation method of FMCW radar utilising only 1D array is proposed. Thus, it can provide 4D parameters to multiple vehicles simultaneously. The feasibility of the proposed approach is verified by on-road measurement data.

Inspec keywords: CW radar; FM radar; road traffic; optical radar; direction-of-arrival estimation

Other keywords: frequency-modulated continuous wave radar; increased cost; future intelligent traffic systems; high adaptability; FMCW radar; complex environments; multiple vehicles; elevation angles estimation method; system complexity; utilising 1D array; FMCW traffic radar

Subjects: Signal processing and detection; Optical radar; Radar equipment, systems and applications; Mobile radio systems; Traffic engineering computing; Vehicle mechanics

References

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    7. 7)
      • 7. Johnson, D.H., Dudgeon, D.E.: ‘Array signal processing: concepts and techniques’ (Prentice Hall, Upper Saddle River, NJ, USA, 1993).
    8. 8)
      • 2. Munoz, J.M., Gallego, J.C., Martinez, F.P.: ‘Monitoring road traffic with a high resolution LFMCW radar’. IEEE Radar Conf., Rome, Italy, May 2008, pp. 15.
http://iet.metastore.ingenta.com/content/journals/10.1049/el.2019.3072
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