Objective
The objectives of this project are: i) to simulate acoustic backscatter time series due to volume reverberation in the sea water, and ii) to develop estimators to determine various characteristics inof the water.
The physics of volume reverberation in water both for continuous media and for discrete scatterers was modelled. The backscattered acoustic field is described in the form of second order statistical moments (auto correlation and cross correlation) of the (stochastic) acoustic waves. These moments drive an echo generator producing synthetic echoes for various transducer input signals. Based on these echoes, estimators have been developed to obtain information from the (sea) water, in particular flow velocity and sediment concentration. The performance of both the model and the estimators have been tested in a laboratory flume. The developed tools (software) should enable instrument manufacturers to design, test and optimize new marine instrumentation under a wide variety of conditions at home, before sailing out for sea trials, thus reducing considerably the costs of the latter.
The simulations are based on (assumed) physical properties inof the water. The product(s) should support to developto get optimum performance of measuring methods based on wideband acoustic volume reverberation. In the present stage the work is confined to: longitudinal (Doppler) and transverse velocity profiling, and refraction index profiling (concentrations). Later applications are temperaturesalinity gradients and turbulence. The product(s) should be capable of replacing (expensive) field tests under poorly known conditions. The work contains the development of a physical model, a signal simulator, and wideband parameter estimators. It includes validation of the model and the estimators by laboratory experiments.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- natural sciences computer and information sciences software
- engineering and technology environmental engineering remote sensing
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Programme(s)
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Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
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Funding Scheme
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Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Coordinator
2500 EX DEN HAAG ('S-GRAVENHAGE)
Netherlands
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.