Reconstruction of basal properties in ice sheets using iterative inverse methods
نویسندگان
چکیده
منابع مشابه
Iterative Regularization Methods in Inverse Scattering
We consider the problem of reconstructing the shape of an acoustic or electromagnetic scatterer from far eld measurements of the scattered wave corresponding to one incident time harmonic wave in the resonance region. This problem is di cult to solve since it is nonlinear and severely ill-posed. The characterization of the Fr echet derivatives, which has been accomplished some years ago by Kirs...
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امروزه لباس در نظر ورزشکاران و کسانی که برای اوقات فراغت خود و یا برای رسیدن به اندامی متعادل، ورزش می کنند؛ بسیار با اهمیت است. احساس مطلوب از لباس در زمره خصوصیات راحتی پوشش می باشد. خصوصیات انتقال رطوبت لباس، در ارزیابی راحتی حسی و حرارتی منسوجات تولید شده از آن ها بسیار مهم است. هدف از این تحقیق، معرفی پارچه جدید است که متشکل از الیاف استبرق با خواص منحصر به فرد می باشد. استبرق لیف طبیعی تو...
Iterative reconstruction methods in X-ray CT.
Iterative reconstruction (IR) methods have recently re-emerged in transmission x-ray computed tomography (CT). They were successfully used in the early years of CT, but given up when the amount of measured data increased because of the higher computational demands of IR compared to analytical methods. The availability of large computational capacities in normal workstations and the ongoing effo...
متن کاملIterative Inversion Methods for Statistical Inverse Problems
In this paper we discuss general regularization estimators. This class includes Tikhonov type and spectral cut-off estimators as well as iterative methods, such as ν-methods and the Landweber iteration. The latter estimators achieve the same (optimal) convergence rates as spectral cut-off, but do not require explicit spectral information on the operator and are often much faster to compute than...
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ژورنال
عنوان ژورنال: Journal of Glaciology
سال: 2012
ISSN: 0022-1430,1727-5652
DOI: 10.3189/2012jog11j168