A note on “A fast high-resolution method for bearing estimation in shallow ocean”. (English) Zbl 1358.93171
Summary: In the referenced paper [Y. Jin et al., Multidimensional Syst. Signal Process. 20, No. 4, 397–406 (2009; Zbl 1298.93316)], a rank-reduction based direction finding algorithm called Rayleigh MUSIC (R-MUSIC) is proposed to deal with the multimode nature of the acoustic propagation in the shallow ocean. However, when a linear array is utilized, R-MUSIC degrades severely for sources located in the vicinity of the array broadside. In this note, a measure is given to overcome this drawback.
MSC:
| 93E10 | Estimation and detection in stochastic control theory |
| 93E25 | Computational methods in stochastic control (MSC2010) |
| 94A12 | Signal theory (characterization, reconstruction, filtering, etc.) |
Citations:
Zbl 1298.93316References:
| [1] | Jin Y., Huang J.-G., Zhang L.-J., Hou Y.-S. (2009) A fast high-resolution method for bearing estimation in shallow ocean. Multidimensional Systems and Signal Processing 20(4): 397–406 · Zbl 1298.93316 · doi:10.1007/s11045-008-0070-3 |
| [2] | Lakshmipathi S., Anand G. V. (2004) Subspace intersection method of high-resolution bearing estimation in shallow ocean. Signal Processing 84(8): 1367–1384 · Zbl 1154.94352 · doi:10.1016/j.sigpro.2004.05.011 |
| [3] | Weiss A. J., Willshy A. S., Levy B. C. (1988) Eigenstructure approach for array processing with unknown intensity coefficients. IEEE Transactions on Acoustics, Speech, and Signal Processing 36(10): 1613–1617 · Zbl 0850.93752 · doi:10.1109/29.7549 |
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