Abstract
We propose a concise underwater array model based on normal mode theory and put forward a new bearing estimation method using generalized Rayleigh ratio theory to lighten the computation burden of three-dimensional MUSIC method. This method obtains source azimuths by one-dimensional search without prior knowledge of source ranges and depths. So, computational complexity of proposed method decreases exponentially compared with that of maximum likelihood (ML) and three-dimensional MUSIC. Results from simulations and lake experiments turn out to be in close agreement with theoretical analysis.
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Jin, Y., Huang, Jg., Zhang, Lj. et al. A fast high-resolution method for bearing estimation in shallow ocean. Multidim Syst Sign Process 20, 397–406 (2009). https://doi.org/10.1007/s11045-008-0070-3
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DOI: https://doi.org/10.1007/s11045-008-0070-3