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Three-dimensional higher-order raypath separation in a shallow-water waveguide
Longyu Jiang1, Zhe Zhang1, Philippe Roux2
1Laboratory of Marine Information Science and Technology, School of Computer Science and Engineering, Southeast University, Nanjing 210096, People's Republic of China.
Abstract:
Separating raypaths in a multipath shallow-water environment is a challenge due to the interferences between them and the colored noise that exists in an ocean environment, especially for two raypaths that arrive close to each other. Thus, in this paper, a three-dimensional (3D) higher-order raypath separation in an array to array configuration is proposed. Performance tests using simulation data in a multipath environment, real data obtained in an ultrasonic waveguide, and ocean shallow-water data, respectively, illustrate that the proposed algorithm achieves a higher resolution and a stronger robustness compared to the existing algorithms.
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