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Erschienen in:
01.12.2022 | ACOUSTIC SIGNAL PROCESSING AND COMPUTER SIMULATION
Source Localization in a Range-Dependent Waveguide with Incomplete Information on Spatial Variability of the Propagation Medium
Erschienen in: Acoustical Physics | Ausgabe 6/2022
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Abstract
The problem of acoustic source localization in a range-dependent waveguide with interaction of normal waves, which leads to their amplitude coupling, is considered. For the given scenario, an adaptive reduced-rank algorithm is constructed, taking into account the difference between the expected signal replica and the true one and does not require knowledge of the corresponding coupling elements. By statistical modeling, it is found that the proposed estimation method gives a significant advantage both in the accuracy of coordinate measurement and in the probability of correct localization compared to the traditional MUSIC method, which does not take into account the effects of mode interaction.