Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Miller, James"'
Autor:
Miller, James Bryan.
Unmanned Air Vehicles (UAVs) are capable of supporting the officer in tactical command (OTC) by gathering intelligence in real- or near real-time. UAVs now under development will be able to collect high-resolution imagery, and thus provide the OTC wi
Externí odkaz:
http://hdl.handle.net/10945/23437
This report presents the results of a fifteen month study on the viability of acoustic tomography in monitoring the circulation of Monterey Bay, California. The basis for ocean acoustic tomography is the measurement of travel times of coded acoustic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______2778::06eb85e255b558727449ecb8399f062b
https://hdl.handle.net/10945/29140
https://hdl.handle.net/10945/29140
Autor:
Pierce, David D.
Matched-Field Processing (MFP) and Matched-Mode Processing (MMP) are two popular techniques for passively localizing an underwater acoustic emitter in range and depth. One major drawback of these techniques has been their sensitivity to uncertainty c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______2778::d998a2402b6f114e64f7f443aa19593e
https://hdl.handle.net/10945/8881
https://hdl.handle.net/10945/8881
Autor:
Kaemmerer, Glen E.
In support of the Mid-Atlantic Bight Field Study process studies to be conducted in July 1996 and February 1997, a feasibility study and simulation of the acoustic multipath arrival structure was conducted. The feasibility study consisted of a litera
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______2778::6f848939c07b8c50c3adb34a74c0c200
https://hdl.handle.net/10945/7508
https://hdl.handle.net/10945/7508
Autor:
Franken, Jeroen
The objective of this study is to investigate the utility of acoustic tomography for performance assessment of a generic low frequency active sonar system. The performance of the sonar is simulated using tomography-derived sound speed data versus a r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______2778::4a2f14b871a07c1e6afe6f7d44a8fc9e
https://hdl.handle.net/10945/30814
https://hdl.handle.net/10945/30814
Autor:
Huelsnitz, Warren G.
Several tools have been developed, primarily using MATLAB, for modeling the active return of a target in an arbitrary, three-dimensional ocean environment and for quantifying the environmental distortion and interference. An acoustic model based on r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______2778::877c09824a89cd6299c4e0678592f1c2
https://hdl.handle.net/10945/30567
https://hdl.handle.net/10945/30567
Autor:
Coelho, Emanuel Ferreira
Coastal currents and water column stratification frequently are determined by local phenomena that interact to produce complex dynamics. A process study was designed to assess the role of tides over a coastal shelf break as a local source of internal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______2778::3c70e13f42897c9dda78f3a48011444f
https://hdl.handle.net/10945/30837
https://hdl.handle.net/10945/30837
Autor:
Muggleworth, Charles E.
Low frequency active sonar performance in shallow water is often limited by reverberation. Reverberation modeling in shallow water has been difficult due to the complexity of the multipath acoustic propagation problem inherent in shallow environments
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______2778::e987f213a62d7925b9777ea30e7b52e2
https://hdl.handle.net/10945/28529
https://hdl.handle.net/10945/28529
Autor:
McLaughlin, Philip G.
In August 1992, an acoustic tomography experiment was conducted in the Barents Sea. The objective of this thesis is the development of space-time signal processing algorithms to extract the arrival times of rays and modes for that experiment. The tem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______2778::bd46b58fb846d153a71f48f1bb4d5f96
https://hdl.handle.net/10945/27263
https://hdl.handle.net/10945/27263
Autor:
Mykyta, John L.
In an effort to solve the forward propagation problem associated with the 1992 Barents Sea Polar Front Experiment Tomography Test, the transmission of a 224 Hz pulse signal from a near bottom sound source to a vertical hydrophone array was simulated
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______2778::a79936a43caa61375c1fb70167d02fcd
https://hdl.handle.net/10945/27219
https://hdl.handle.net/10945/27219