Formulas for Source Depth Estimation From Multipath Arrivals in Deep Water

2020/06/25 by Rui Duan, Kunde Yang, Feiyun Wu +2 · 2 citations
Earth and Planetary Sciences · Computer Science · Engineering · #Underwater Acoustics Research #Speech and Audio Processing #Underwater Vehicles and Communication Systems

paper · doi:10.1109/taes.2020.3004905

Abstract

This article presents formulas to calculate the source depth based on the arrival angle and time delay between the direct and surface-refracted arrivals measured in deep water from a broadband signal. Using the formulas, the data autocorrelation is transformed to a correlation sequence as a function of assumed source depth, which can be simply averaged over a long time to estimate the source depth in a noisy environment. Both the simulated and real data verify the effectiveness and efficiency of the proposed method.

Citations

• Gaussian beam tracing for computing ocean acoustic fields
• Depth-based signal separation with vertical line arrays in the deep ocean
• Moving source localization with a single hydrophone using multipath time delays in the deep ocean
• A performance study of acoustic interference structure applications on source depth estimation in deep water

Cited by

• Passive source depth estimation without prior sound speed profile in reliable acoustic path environments
• Three-dimensional passive source localization using a deep-water vector sensor vertical line array: A particle filtering-based track-before-detect method

Related

• Use of multipath time-delay ratio for source depth estimation with a vertical line array in deep water
• Passive source depth estimation without prior sound speed profile in reliable acoustic path environments
• A performance study of acoustic interference structure applications on source depth estimation in deep water
• Moving source localization with a single hydrophone using multipath time delays in the deep ocean
• Improved multipath time delay estimation using cepstrum subtraction