[PDF] Top 20 Matched-field tomography using an acoustic oceanographic buoy
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Matched-field tomography using an acoustic oceanographic buoy
... The Acoustic Oceanographic Buoy (AOB) is a light acoustic receiving device that is being developed in the framework of a joint research project and tested during the Maritime Rapid ... See full document
6
Geoacoustic matched-field inversion using a vector sensor array
... the acoustic pressure and the three components of particle ...into an array, a Vector Sensor Array (VSA) improves direction of arrival (DOA) estimation and provides information in both vertical and ... See full document
6
An experimental demonstration of blind ocean acoustic tomography
... for. An additional difficulty arises from the fact that our de- gree of knowledge of the parameters to be inverted for may be highly ...involves an environ- mental and geometrical focalization procedure ... See full document
12
From oceanographic to acoustic forecasting: acoustic model calibration using in situ acoustic measures
... on acoustic propagation models and envi- ronmental representations of the oceanic area in which the sonar is to ...predicted acoustic field, which is the output of a propagation ...nowadays, ... See full document
12
Acoustic Oceanographic Buoy Test during the MREA’03 Sea Trial
... tic Tomography (BOAT) [3, 4] with different settings for the parameter search bounds and genetic algorithms (GA) conversion parameters taking into account that source po- sition was approximately known and that ... See full document
38
Acoustic oceanographic buoy telemetry system: an ‘advanced’ sonobuoy that meets acoustic rapid environmental assessment requirements
... by using space/airborne sensors ...traditional oceanographic sensors like CTDs, wave height and ADCPs; passive and/or active acoustic ...detection, tomography and bottom inversion. ... See full document
5
Blind ocean acoustic tomography: experimental results on the INTIFANTE'00 data set
... Ocean Acoustic Tomography (BOAT) is an ocean remote exploration concept similar to acoustic tomography but where both the emitted signal waveform and the source position are ... See full document
10
Acoustic oceanographic buoy data report Makai Ex 2005
... ago, matched-field processing (MFP) application on real data was made possible due to, at the time, recent developments on acoustic propagation codes and ad- vances in computer ...the acoustic ... See full document
48
Environmental inversion using high-resolution matched-field processing
... to an important discussion in MF approaches, which is on the ability of the processor to attenu- ate ...that using coherent processors would allow for increased sidelobe attenuation in comparison to the ... See full document
14
Acoustic observatories for ocean tomography: geometries and multi-array Matched-Field Tomography
... of acoustic data [3], [4], [5]. These studies present schemes involving an MFT inversion in a first step to estimate range-averaged sound speed ...is an iterative MFP method using complex ... See full document
8
Broadband matched-field tomography using simplified acoustic systems
... I would like to thank my supervisor Prof. S´ ergio M. Jesus for his permanent effort in providing the necessary conditions in the labo- ratory for accomplishing the objectives of this work, by organizing scientific ... See full document
208
Basin scale simulations of ocean acoustic tomography in the Portuguese exclusive economic zone
... the acoustic monitoring of El Ni˜ no used analytic approximations for the turning depths of eigenrays to predict a variation of ray travel time perturbations up to 180 ms for the temperature variations ... See full document
37
Passive ocean acoustic tomography: theory and experiment
... active tomography, in this work an innovative approach – passive OAT (P-OAT) – developed in the frame of the TOMPACO project (TOmografia PAsssiva COstiera) is ...passive tomography, differently from ... See full document
6
Flow acoustic interaction in corrugated pipes time domain simulation of experimental phenomena
... during an aeroacoustic insta- bility and thus the all-to-all complete time-space correlation between the “vortex oscillators” does not appear necessary to explain the excitation of the acoustic ...pressure ... See full document
6
Experimental testing of the blind ocean acoustic tomography concept
... Acoustic signals were received on a moored vertical line array (VLA) with 16 hy- drophones, with its shallow and deep hydrophones positioned at nominal depths of 32 and 92 m, respectively. Array depth and tilt ... See full document
8
Radiol Bras vol.47 número5
... The retrocrural, transcrural, transaortic and anterior ap- proaches are the most commonly utilized in CPB, differing from each other in needle directioning, insertion angula- tion and pathway, as well as in patient ... See full document
5
ACOUSTIC TRAVELTIME TOMOGRAPHY FOR CO2 INJECTION MONITORING IN RESERVOIRS
... first, an overview of inver- sion theory, the selection of single values and the regularization by derivative matrices is ...eltime tomography is ... See full document
10
Broadband matched-field processing: coherent and incoherent approaches
... than an incoherent ...of using the cross-frequency terms resides in its ability to reject noise, while its disadvantage is that the result is limited by the correlation of the random phase terms together ... See full document
12
Bol. Ciênc. Geod. vol.20 número2
... explored using a geodetic and an oceanographic ...constructed using the long wavelengths of the go_cons_gcf_2_tim_r3 and short wavelengths from EGM2008 component called ...remaining an ... See full document
17
Acoustic barriers as an acoustic deterrent for native potamodromous migratory fish species
... The acoustic stimuli comprised 140 Hz tone pulses, 50 ms long, 3 ms ramps, delivered at a rate of 195 min and sine sweeps up to 2 kHz (sweep-up stimulus), 5 s long, delivered at a rate of 12 min (Figure ...to ... See full document
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