DOI QR코드

DOI QR Code

A Study on Phase Bearing Error using Phase Delay of Relative Phase Difference

  • Received : 2021.02.18
  • Accepted : 2021.02.24
  • Published : 2021.05.31

Abstract

This study proposes a method to reduce the phase error of the received signal to detect the object bearing. The phase shift of the received signal occurs due to the multipath of the signal by natural structure or artificial structures. When detecting the direction of the object using radio waves, the phase of the received signal cannot be accurately detected because of the phase bearing error in the object detection direction. The object detection direction estimation depends on the phase difference, antenna installation distance, signal source wavelength, frequency band and bearing angle. This study reduces the error of the phase bearing by using the phase delay of the relative phase difference for the signals incident on the two antennas. Through simulation, we analyzed the object direction detection performance of the proposed method and the existing method. Three targets are detected from the [-15°, 0°, 15°] direction. The existing method detects the target at [-13°, 3°, 17°], and the proposed method detects the at [-15°, 0°, 15°]. As a result of the simulation, the target detection direction of the proposed method is improved by 2 degrees compared to the existing method.

Keywords

References

  1. Peebles Jr., P.Z., Radar Principles, John Wiley & Sons, pp. 17-153, 1998.
  2. Merrill. Skolnik, Radar Handbook, Mcgraw-Hill, pp. 10-78, 1997.
  3. Merrill. Skolnik, Introduction to Radar Systems, Mcgraw-Hill, pp. 57-98, 2000.
  4. Weizhong. Yan, "DOA Measurement of Moving Targets", in proc. IEEE Cross Strait Radio Science & Wireless Technology conference, pp.1-3, Dec. 13, 2020. DOI: 10.1109/CSRSWTC50769.2020.9372632.
  5. Haw. Chen, and Erwin, H.W.Chan, "Photonic-Based RF Signal Phase Detector with Wide Operating Frequency Range and High Resolution", IEEE Photonics, pp.7900709, Vol. 13, No. 2, April 2021. DOI: 10.1109/JPHOT.2021.3066992.
  6. Yuanling, Huang and Yourong, Lu, "Small Carrier Frequency Difference Detection based on the Relative Phase Entropy", in Proc. IEEE International Symposium on Communications and Information Technologies, pp.1417-1422 , Dec. 17, 2007, DOI: 10.1109/ISCIT.2007.4391973.
  7. K.Chang, S.Johnson, R.Foltz, and R.Castner, "Angle Error Simulation for Phased Array Radar System", IEEE Antennas and Propagation Society Symposium, in proc. pp. 1400-1403, June. 24, 1991, DOI: 10.1109/APS.1991.175111.
  8. Lv.Yakun, Wu.Yanhong, Wang.Horgyan, and Sherg.Shiqinag, "Phase Error compensation Algorithm of Inverse Synthetic Aperture LiDAR base on CS-FMEA", IEEE International Conference on Computer and Communications, pp. 1-5, Dec. 13, 2017 . DOI: 10.1109/ICCC41418.2017.
  9. Tingzhu.Fang, Heng.Zhang, Da.Liang, Lei.Zhang, Huaitao.Fao, "A Channel Phase Error Estimation Method for Multichannel TOPS and Multichannel Sliding Spotlight SAR Imaging", IEEE Geoscience and Remote Sensing Letters, pp. 1-5, Vol.1, 2021. https://doi.org/10.1109/lgrs.2004.823373
  10. Xinagrui.Dai, Xiaofei. Zhang, and Yunfer.Wang, "Extend DoA-Matrix for DoA Estimation via Two Parallel Linear Arrays", IEEE Communications Letters, pp. 1981-1984, Vol. 23, No. 11, 2019, DOI: 10.1109/LCOMM.2019.2939245.