Research of Beam Domain MVDR and Motion Compensation

Abstract:

Minimum variance distortionless response (MVDR) beamformer is a better target detection method, which provided high-resolution and anti-interference abilities. But the nice features will be degraded significantly for a fast bearing-rate target. Because the eigenvalue of longtime integral correlation matrix will spread, the signal and interference are no longer clearly identified by the eigenvectors. A beam domain MVDR and motion compensation arithmetic is given in this paper. The motion effect can be compensated by tracking the signal bearing change using real time estimated beam domain covariance matrix. The detection ability of moving target can be improved.

• Periodical: Applied Mechanics and Materials (Volume 686)
• Pages: 363-370
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.686.363
• Online since: October 2014
• Authors: Xiu Bo Luo*, De Min Xu, Jun Jun Hu, Xiao Mei Hu
• Keywords: Beamforming, Motion Compensation, MVDR

References

[1] Capon J. High-resolution frequency-wavenumber spectum analysis. Proc. IEEE 57, 1969. 1408-1418.

DOI: 10.1109/proc.1969.7278

[2] Lee H B, Wengrovitz M S. Improved high-resolution direction-finding through use of homogeneous constraints. Proc. IEEE ASSP working spectrum estimation and modeling, 1988. 152-157.

DOI: 10.1109/spect.1988.206181

[3] Guanghan Xu, Seth D Silverstein, Richard H Roy etal. Beamspac; e ESPRIT. IEEE Trans. SP, 1994, 42(2): 349-355.

[4] Michael D Zoltowski, Gregory M Kautz, Seth D Sil-verstein. Beamspace Root-MUSIC. IEEE Trans. SP, 1993, 41(1): 344-364.

DOI: 10.1109/tsp.1993.193151

[5] Hero A. Highlights of statistical signal and array proccssing[J]. IEEE Transactions on Signal Processing, 2000, 25(4): 303-307.

[6] Tu yong-liang, Ding Qian-jun, Li Rong-feng, Adaptive array processing[M]. Beijing: Tsinghua University Press, (2009).

[7] VanTrees Harry L. Optimum Array Processing Part IV of Detection, Estimation, and Modulation Theory[M]. Ncwyork; John Wiley&-Sons, lnc, (2002).

[8] Krolik J, Swinglcr D. The detection performance of coherent wideband focusing for a spatially resampled array[J]. IEEE International Confenrence ASSP, 1990, 2(9): 2827-2830.

DOI: 10.1109/icassp.1990.116214

[9] Yang Yi-xin. Studies on Beamforming and Beamspace High Resolution Bearing Estimation Techniques in Sonar Systems. [D] Xi'an: Northwestern Polytechnical University, (2002).

[10] Tang Qi, Huang Jian-guo, Yang Xu-dong. Adaptive Beam Space High-resolution DOA Estimation. [J]. Journal of System Simulation, 2007, 19(7): pp.1583-1583.

[11] Michael D Zoltowski, Gregory M Kautz, Seth D Silve. Beamspace Root~MUSIC. IEEE Trans. SP, 1993, 41(1): pp.344-364.

DOI: 10.1109/tsp.1993.193151

[12] T.C. Yang. Motion compensation for adaptive horizontal line array processing. January, 2003, J.A.S.A. 113(1): pp.245-260.