Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Raymond J. Christian"'
Autor:
Robert C. Manke, Raymond J. Christian
Much of the recent national discussions about asymmetric warfare and asymmetric threats has been lacking a rigorous understanding of the dimensions of asymmetry in warfare. Because opponents in warfare are always looking for an asymmetric advantage a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c407859a426b9f6fa36377a69c4688f9
https://doi.org/10.21236/ada473064
https://doi.org/10.21236/ada473064
Autor:
Raymond J Christian
Since the early 1990s, the undersea warfare (USW) community has experienced dramatic changes in its operational, technical, and business climates. The changes are expected to continue and perhaps accelerate-leading to significant new demands for USW
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5534888b1ee244616a1f63f2ec07d052
https://doi.org/10.21236/ada468885
https://doi.org/10.21236/ada468885
Defense community innovators have proposed concepts for using cutting-edge technologies to solve long-standing military challenges, including destruction of time-critical targets, theater-wide surveillance, power projection, and access to littorals.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::424690908a5c11a1e7d09a86029ddf57
https://doi.org/10.21236/ada402951
https://doi.org/10.21236/ada402951
Autor:
Raymond J. Christian
Publikováno v:
The Journal of the Acoustical Society of America. 122:2998
Since the early 1990s, the military and commercial undersea communities have experienced dramatic changes in operational, technical, and business climates driven by the confluence of technology advances and increased civilian and military interest fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e8a04d404742d4262277cf09653373e
https://doi.org/10.1121/1.2942706
https://doi.org/10.1121/1.2942706
Publikováno v:
The Journal of the Acoustical Society of America. 97:3385-3386
The Critical Sea Test (CST) is an empirical Navy program which collects low‐frequency (100–1000 Hz) environmental acoustics measurements in order to provide a diverse, high‐quality database for sonar performance prediction. During the course of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::43ade237d1159f26e7a95a3ec9e3ee63
https://doi.org/10.1121/1.412589
https://doi.org/10.1121/1.412589
Autor:
Raymond J. Christian, John B. Chester
Publikováno v:
The Journal of the Acoustical Society of America. 97:3404-3404
A comprehensive low‐frequency (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb2cbc561e96c5e0ab7097a35cd19249
https://doi.org/10.1121/1.412522
https://doi.org/10.1121/1.412522
Publikováno v:
The Journal of the Acoustical Society of America. 95:2880-2880
Warm core eddies have been reported throughout the oceans of the world, usually associated with warm boundary currents such as the Gulf Stream. The physical characteristics and impact on acoustic propagation conditions were compared for various eddie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f0ebda8eacf7227852c10e88893edb64
https://doi.org/10.1121/1.409431
https://doi.org/10.1121/1.409431
Publikováno v:
The Journal of the Acoustical Society of America. 95:2929-2929
Empirically derived surface loss values are not obtained directly but are derived from propagation loss measurements that include at least two other components. Surface loss is determined by making assumptions with regard to spreading loss, volume at
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6a84ca8b09d8db389b36b30e5ba3cfc5
https://doi.org/10.1121/1.409189
https://doi.org/10.1121/1.409189
Autor:
Raymond J. Christian
Publikováno v:
The Journal of the Acoustical Society of America. 92:2323-2323
The impact of refraction, attenuation, and scattering due to a near‐surface bubbly layer on acoustic propagation modeling can be significant in appropriately sensitive surface duct and shallow water environments. Hall [J. Acoust. Soc. Am. 86, 1103
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a3b84f62b037a9034b02a351c26dc99
https://doi.org/10.1121/1.405023
https://doi.org/10.1121/1.405023
Publikováno v:
The Journal of the Acoustical Society of America. 90:2300-2300
The curtain effect, which controls sound propagation in a sound channel [Browning et al., J. Acoust. Soc. Am. Suppl. 1 88, S132 (1990)], is shown to exist in modified form for severely bottom‐limited propagation conditions that can exist in shallow
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ebf7371643161aa6d798151d7892a10f
https://doi.org/10.1121/1.401080
https://doi.org/10.1121/1.401080