Linking deterministic and stochastic aspects of the seafloor's acoustic response in the context of seabed mapping with echosounders
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View abstract on PubMed
Summary
This summary is machine-generated.The acoustic seafloor response (ASR) can be ambiguous. This study analytically links deterministic theoretical ASR to stochastic measurements, showing measured ASR is the expected value, crucial for seabed mapping.
Area Of Science
- Oceanography
- Acoustics
- Geophysics
Background
- The monostatic acoustic seafloor response (ASR) is used in various seabed mapping applications.
- The intrinsic nature of ASR can be ambiguous due to differing theoretical and measurement contexts.
Purpose Of The Study
- To analyze semantic discrepancies in ASR definitions.
- To reconcile the deterministic nature of theoretical ASR with its observed stochastic measurements.
Main Methods
- Recalled theoretical and physical definitions of ASR.
- Analyzed discrepancies between theoretical and measured ASR using a point scattering model.
- Derived a relationship between deterministic ASR and stochastic measurements.
Main Results
- ASR is theoretically deterministic but measured stochastically.
- The measured ASR (backscattering strength) is analytically linked to the expected value of the theoretical ASR.
- Under specific hypotheses, measured ASR is derived as twice the parameter of the Rayleigh distribution.
Conclusions
- The study provides an analytical link between theoretical and measured ASR, resolving apparent contradictions.
- The findings clarify the physical interpretation of ASR measurements from echosounders.
- Implications for echosounder operations and seabed characteristic analysis are discussed.
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