Rapid matching system for marine acoustic propagation reliability model

Abstract

The invention realizes a rapid matching system for a marine acoustic propagation reliability model, which comprises a submersible on-site underwater acoustic environment rapid measuring device for obtaining marine environmental data then and there and noise vector information; a data fitting correction module for correcting the historical environment data based on measured marine environmental data; an ocean acoustic propagation model calculation module for using a GPU parallel computing method to solve a variety of underwater acoustic propagation models in the underwater acoustic propagationmodel library in real time and obtaining predicted acoustic propagation loss; and an acoustic propagation reliability model matching module for comparing the multi-point measured acoustic propagationloss data with the acoustic propagation loss data calculated by different underwater acoustic propagation models. The model with the smallest variance is the most reliable model of the site at that time. The system can quickly select the reliable acoustic propagation calculation model of the sea area at that time based on the information of the on-site marine environment data and effectively improve the practical problems such as poor applicability of the marine acoustic propagation model environment and low credibility of marine acoustic propagation calculation.

Description

technical field [0001] The invention relates to an ocean underwater sound propagation model solution, sound field measurement and a fast model matching method thereof, belonging to the field of ocean acoustics. Background technique [0002] With the in-depth research on broadband acoustic propagation, shallow sea ground acoustic inversion, matching field positioning, and underwater environment simulation, higher requirements are put forward for the calculation speed and accuracy of underwater acoustic propagation models. However, the sound propagates along the curve underwater and is greatly affected by the hydrological environment conditions on site. Underwater sound propagation has strong spatial asymmetry and temporal and spatial variability. Although the current underwater sound propagation calculation models for different ocean environments have reached hundreds of However, different models have their own scope of application, and the reliability of the calculation resu...

AI Technical Summary

Problems solved by technology

In reality, due to the extremely complex underwater acoustic environment, not only the accuracy of the input parameters of the underwater acoustic propagation model is difficult to meet the requirements of acoustic propagation calculations, but it is even more difficult to ensure that the appropriate acoustic propagation calculation model is selected according to the on-site marine environment. Reliable ocean sound propagation calculation model has always been a difficult problem in the field of ocean acoustics for practical applications

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