Zobrazeno 1 - 10
of 46
pro vyhledávání: '"B. R. Hunt"'
Publikováno v:
Nonlinear Processes in Geophysics, Vol 20, Iss 6, Pp 1031-1046 (2013)
The most widely used methods of data assimilation in large-scale oceanography, such as the Simple Ocean Data Assimilation (SODA) algorithm, specify the background error covariances and thus are unable to refine the weights in the assimilation as the
Externí odkaz:
https://doaj.org/article/91528aae64ab448ebd2f101b277341ae
Publikováno v:
Nonlinear Processes in Geophysics, Vol 15, Iss 4, Pp 645-659 (2008)
This paper compares the performance of the Local Ensemble Transform Kalman Filter (LETKF) with the Physical-Space Statistical Analysis System (PSAS) under a perfect model scenario. PSAS is a 3D-Var assimilation system used operationally in the Goddar
Externí odkaz:
https://doaj.org/article/3fb894d44a964085bc3abb7755d3c744
Autor:
M. Corazza, E. Kalnay, D. J. Patil, S.-C. Yang, R. Morss, M. Cai, I. Szunyogh, B. R. Hunt, J. A. Yorke
Publikováno v:
Nonlinear Processes in Geophysics, Vol 10, Iss 3, Pp 233-243 (2003)
A 3D-variational data assimilation scheme for a quasi-geostrophic channel model (Morss, 1998) is used to study the structure of the background error and its relationship to the corresponding bred vectors. The "true" evolution of the model atmosphere
Externí odkaz:
https://doaj.org/article/0d47582993d54cc4b103fc92b946ceec
Autor:
D. J. Granrath, B. R. Hunt
Publikováno v:
Applied optics. 18(1)
Signal detection theory is used to develop analytic models which yield comparisons between optical and digital Fourier transform computers in terms of their ability to detect transformed signals within small spectral regions of their Fourier domains.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9059d7d22084a54ecf40b26f33dfa783
https://pubmed.ncbi.nlm.nih.gov/20208658
https://pubmed.ncbi.nlm.nih.gov/20208658
Autor:
D. Fraser, B. R. Hunt
Publikováno v:
Symposium - International Astronomical Union. 158:218-220
In this work, we present another proof of the theoretical existence of super resolution, under certain conditions. The proof relies on an ideal model in which a prototypical discrete image is formed by summation of many discrete pulses placed anywher
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::480fc2fc0656dc5f4372e4f8c96d2e02
https://doi.org/10.1017/s0074180900107636
https://doi.org/10.1017/s0074180900107636
Publikováno v:
Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics. 60(1)
We propose an efficient iterative scheme for calculating the box-counting (capacity) dimension of a chaotic attractor in terms of its average expansion rates. Similar to the Kaplan-Yorke conjecture for the information dimension, this scheme provides
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::a5047c99230fe960cf0d763ce27637ca
https://pubmed.ncbi.nlm.nih.gov/11969771
https://pubmed.ncbi.nlm.nih.gov/11969771
Publikováno v:
Medicine & Science in Sports & Exercise. 31:S81
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::39c5dde4187c40ca1fa25cacb93529c9
https://doi.org/10.1097/00005768-199905001-00249
https://doi.org/10.1097/00005768-199905001-00249
Autor:
B R Hunt
Publikováno v:
Reports on Progress in Physics. 46:515-553
Visual displays have become common in the post-war world, due to the improved performance of digital and CRT systems. In this review the author discusses the relevance of information theory to visual displays. The basic concepts of information theory
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::090c99292c3c02f1e9e115a116f2e072
https://doi.org/10.1088/0034-4885/46/4/002
https://doi.org/10.1088/0034-4885/46/4/002
Autor:
B. R. Hunt, G. F. Sera
Publikováno v:
IEEE Transactions on Systems, Man, and Cybernetics. 8:781-791
A new method for relating subjective and objective image data measures is proposed in power-law stimulus-response models, which have been successfully employed in other problems in experimental psychology but not in image quality models. The results
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7d6c77714d30824e7994c437c9ef0551
https://doi.org/10.1109/tsmc.1978.4309865
https://doi.org/10.1109/tsmc.1978.4309865
Autor:
Zhongde Wang, B. R. Hunt
Publikováno v:
Applied Mathematics and Computation. 16:19-48
Four different versions of the discreteW transform (DWT) are introduced. The DWT may be decomposed into the discrete cosine transform (DCT) and the discrete sine transform (DST). Eight versions of both DCT and DST are introduced for the decomposition
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3d460e6ea5516347bb165b7eff7ccf8d
https://doi.org/10.1016/0096-3003(85)90008-6
https://doi.org/10.1016/0096-3003(85)90008-6