DOI QR코드

DOI QR Code

A Study on Look Error Estimation and Adaptive Array Angle Estimation

지향 오차 추정과 적응 배열 입사방향 추정 방법에 대한 연구

  • Received : 2011.04.08
  • Accepted : 2011.05.24
  • Published : 2011.09.30

Abstract

It is using to incident angle estimation technique in order to target estimation in radar. This paper was estimated incident angle estimation for target using adaptive array incident angle and single look error incident angle estimation technique. We estimated signal incident angle of target to removal main lobe and side lobe to adaptive array incident angle technique. It is difficult to correctly target estimation because single look technique increase direction error of signal incident angle. In order to receive a desired target signal must be not almost look error between signal incident angle and look angle. we had decreased to occur a look error using delay time and single look condition to calculation a covariance when incident angle estimate. Through simulation, we show that the proposed incident angle estimation technique improves the performance of target estimation compared to previous method.

레이더에서 목표물을 예측하기위해서 입사 방향 추정 방법을 사용한다. 본 논문에서는 적응 배열 입사 방향 방법과 단일 지향 오차 입사 방향 추정방법을 사용하여 목표물에 대한 입사방향을 추정하였다. 적응 배열 입사 방향 방법으로 주엽 재밍과 부엽 재밍을 제거하여 목표물에 대한 신호 입사 방향을 추정하였다. 단일 지향 방법은 신호 입사 방향의 지향오차가 크기 때문에 목표물의 정확한 추정은 어렵다. 원하는 목표 신호를 수신하기 위해서는신호의 입사 방향과 지향방향사이에 지향오차가 거의 없어야 한다. 입사 방향 추정시 공분산을 구하기 위해서 생기는 지연 시간문제와 단일 지향조건을 이용하여 발생하는 지향오차 문제를 감소시켰다. 본 논문에서는 시뮬레이션을 통하여 제안된 입사 방향 추정방법이 기존의 방법에 비해 목표물 추정면에서 우수함을 보인다.

Keywords

References

  1. David K. Barton. "Radar System Analysis and Modeling," Artech House, pp.1-83, 2005.
  2. Xiaojing Huang, Y. Jay Guo, and John D. Bunton, "A Hybrid Adaptive Antenna Array," IEEE Trans. on Wireless Communications, Vol. 9, No. 5, pp. 1770-1779, May. 2010. https://doi.org/10.1109/TWC.2010.05.091020
  3. J. Montesinos , O. Besson, and C. Larue de Tourne mine, "Adaptive Beamforming for Large Arrays in Satellite Communications Systems with Dispersed Co verage," IET Communications. Vol. 5, No. 3, pp. 350-361, February. 2011.
  4. khlee and wysong, "Astudy on Target Position Algorithmto Radar System," Journal of The Korea Society of Computer and Information, Vol. 13, No. 5, pp. 111-1116, Sep. 2010.
  5. khlee, wysong, and hykim, "Performance Analysis of CDMA System using Weight," Journal of The Korea Society of Computer and Information, Vol. 11, No. 3, pp. 213-219, Jun. 2006.
  6. K, B. Yu and D. J. Murrow, "Adaptive Digital Beamforming for Angle Estimation in Jamming," IEEE Trans. on Aersop Electro System, Vol. 37, No. 2, pp. 508-523, April. 2001. https://doi.org/10.1109/7.937465
  7. S. Park, T. K. Sarkar, and R. A. Schneible, "Preve ntion of Signal Cancellation in an Adaptive Nulling Problem," IEEE Radar Conference, Vol. 1, pp.191- 195, May. 1997.
  8. Feng Qian, Van Veen, and B.D, "Quadratically Constrained Adaptive Beamforming for Coherent Signals and Interference", IEEE Trans on. Signal Processing, Vol. 43, No. 1, pp.1890-1900, August. 1995. https://doi.org/10.1109/78.403348
  9. Park, S. Sarkar, and T.K, "Prevention of Signal Canc llation in an Adaptive Space-Time Nulling Problem", IEEE Antennas and Propagation Society International Symposium, Vol. 2, No. 1, pp.1040- 1043, July. 1997.
  10. Merr I. Skolnik, "Introduction to Radar System," McGra Hill, pp.173-209, 2000.
  11. Guangmin Wang, Jingmin Xin, and Nanning Zheng ", Two_Dimentional Direction of Arrival Estimation of Coherent Signals with L-Sharped Array," IEEE Conference. Sensor Array and Multichannel Signal Processing, Vol. 1, No. 1, pp.261-264, October. 2010.
  12. Yang. Li, Xia. Bai, and Ran Tao, "Estimation and Analysis of Lacunarity of Scattering Signals at Different Incident Angles," IEEE Conference. International Signal Processing , Vol. 1, No. 1, pp.2184 -2187, October. 2010.
  13. M. Kim, K. Ichige, and H. Arai, "DOA-based Adaptive Array Antenna Testbed System," IEEE Conference Wireless Communication Technology, Vol. 1, No. 1, pp.374 - 375, October. 2003.
  14. M. Khandaker, I. Islam, and M. R. Amin, " "Adaptive Beamforming of Linear Array Antenna System with Provision of Sidelobe Cancellation," IEEE Conference. International Computer and Information Technology, Vol. 1, No. 1, pp.1-4, December. 2007.