Zobrazeno 1 - 10
of 24
pro vyhledávání: '"J.T. Christoff"'
Autor:
J.T. Christoff, J.E. Piper, D. E. McGehee, K.W. Commander, Michael D. Richardson, Darrell R. Jackson, D. V. Holliday, Nicholas P. Chotiros, Charles F. Greenlaw, Joseph L. Lopes, Dajun Tang, Kevin L. Williams, Eric I. Thorsos
Publikováno v:
IEEE Journal of Oceanic Engineering. 26:4-25
A high-frequency acoustic experiment was performed at a site 2 km from shore on the Florida Panhandle near Fort Walton Beach in water of 18-19 m depth. The goal of the experiment was, for high-frequency acoustic fields (mostly In the 10-300-kHz range
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e8498433c2d7a9dd15cb98971ae5d238
https://doi.org/10.1109/48.917916
https://doi.org/10.1109/48.917916
Publikováno v:
Oceans '02 MTS/IEEE.
The experimental synthetic aperture sonar (SAS) in use at the US Navy Coastal Systems Station (CSS) in Panama City, Florida, was first fielded in 1996. Since then, the system has proved itself to be a reliable high-quality sensor. The original config
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0453ad6f5c650df715f1131e021d1af9
https://doi.org/10.1109/oceans.2002.1191916
https://doi.org/10.1109/oceans.2002.1191916
Publikováno v:
Oceans 2003. Celebrating the Past ... Teaming Toward the Future (IEEE Cat. No.03CH37492).
Synthetic aperture sonars (SAS) and autonomous underwater vehicle (AUV) are two of the most exciting technologies under development by the underwater research and development community. Integration of these technologies promises to produce underwater
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::587d221a2cd9d511a53aa0b8c0b93ac5
https://doi.org/10.1109/oceans.2003.178136
https://doi.org/10.1109/oceans.2003.178136
Publikováno v:
Oceans 2003. Celebrating the Past ... Teaming Toward the Future (IEEE Cat. No.03CH37492).
To date, ocean-going synthetic aperture sonar (SAS) systems have been deployed exclusively in a configuration where the sonar instrument is housed in a towed body that receives power from and exchanges information with the vessel to which it is attac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::75e57aec466029dbb549e0845ad18245
https://doi.org/10.1109/oceans.2003.178234
https://doi.org/10.1109/oceans.2003.178234
Publikováno v:
Proceedings of OCEANS'94.
COASTSYSTA has developed a 3-dimensional target strength model of an arbitrarily shaped object based upon an application of the Kirchoff approximation and the geometric theory of diffraction. A comparison between theory and experiment is made for sev
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::67d4abaac3befacdb645c0bed3c9ec5f
https://doi.org/10.1109/oceans.1994.364053
https://doi.org/10.1109/oceans.1994.364053
Publikováno v:
MTS/IEEE Oceans 2001. An Ocean Odyssey. Conference Proceedings (IEEE Cat. No.01CH37295).
Broadband multi-aspect processing promises to improve the image quality and target detection/classification capabilities of imaging systems since the different aspects or 'looks' can provide additional clues about the shape and dimension of targets.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0ae4ceb456bb346c9640b8690465b4f9
https://doi.org/10.1109/oceans.2001.968709
https://doi.org/10.1109/oceans.2001.968709
Autor:
Jose E. Fernandez, J.T. Christoff
Publikováno v:
OCEANS 2000 MTS/IEEE Conference and Exhibition. Conference Proceedings (Cat. No.00CH37158).
Multi-aspect or multi-look processing is known to improve the image quality and target detection capability of high resolution synthetic aperture sonar (SAS) imaging systems. We present in this paper a brief description on the topic and typical resul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::50b6873969c7dec2222a173f311dbe0d
https://doi.org/10.1109/oceans.2000.881256
https://doi.org/10.1109/oceans.2000.881256
Autor:
Jose E. Fernandez, J.T. Christoff
Publikováno v:
SPIE Proceedings.
The shallow water and very shallow water environment is a very hostile region for sonar operations, however it is still considered one of the best options for mine detection and classification in this region. The water depth and small vehicle size de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c1e69b96f29dc0ef9f15924ef367897a
https://doi.org/10.1117/12.354667
https://doi.org/10.1117/12.354667
Autor:
J.T. Christoff, J.E. Fernandez
Publikováno v:
IGARSS '98. Sensing and Managing the Environment. 1998 IEEE International Geoscience and Remote Sensing. Symposium Proceedings. (Cat. No.98CH36174).
The current state of the art in the United States Navy's imaging sonar systems, in terms of resolution, consists of a dual high frequency and low frequency synthetic aperture sonar (SAS) system (HF/LFSAS). These two frequencies are used simultaneousl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::848990eacccbfc442ea6cc8780c765b2
https://doi.org/10.1109/igarss.1998.699531
https://doi.org/10.1109/igarss.1998.699531
Autor:
J.T. Christoff, Leonid Vaizer, Thomas C. Montgomery, Gary Steven Sammelmann, Robert W. Sheriff, John D. Lathrop, Jose E. Fernandez
Publikováno v:
SPIE Proceedings.
The HF/LF SAS is a high resolution SAS developed by COASTSYSTA and Northrop Grumman for the shallow water (SW) and very shallow water (VSW) regimes. This sonar suite has recently been delivered to COASTSYSTA and it is currently undergoing field testi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cb845c2d461b9ef3162865842a015d0d
https://doi.org/10.1117/12.280850
https://doi.org/10.1117/12.280850