Performance analysis of the music algorithm in the presence of amplitude and phase error
Tóm tắt
This paper presents the performance analysis of the MUSIC algorithm in the presence of channel amplitude and phase Error. Theoretical expression for the error of DOA estimating with MUSIC algorithm and Cramer-Rao bound are derived. It is compared with simulations performed for some representative cases. The results of theoretical expression and simulation show that existence of these errors will increase the error of DOA estimating and degrade its performance.
Tài liệu tham khảo
V. F. Pisarenko, The retrieval of harmonics from a covariance function, Geophys. J. Roy. Astron. Soc., 15(1973)1, 247–266.
R. O. Schmitdt, Multiple emitter location and signal parameter estimation, in Proc. RADC spectral Est. Workshop, Rome, NY: 1979, 243–258.
P. Stoica, A. Nehorai, MUSIC, maximum likelihood, and Cramer-Rao bound, IEEE Trans. on ASSP, ASSP-37(1990)5, 720–741.
L. S. Zhang, Z. Bao, Y. H. Zhang, The effect of channel mismatch on the DBF sidelobe level of antenna, Symposium on Airborne Warning Radar, Beijing: 1993.4, 181–188, (in Chinese).
Ni Jinlin, Li Zheng, Zhang Guangyi, The effect of channel mismatch on the performance of adaptive array, Modern Radar, 16(1994)3, 53–59, (in Chinese).
A. Swindlehurst, T. Kailath, A performance analysis of subspace-based methods in the presence of model error: Part I-The MUSIC algorithm, IEEE Trans. on SP, SP-40(1992)7, 1758–1774.