Results 31 to 40 of about 4,884,732 (252)

Deriving inherent optical properties and associated inversion-uncertainties in the Dutch Lakes [PDF]

, 2009
Remote sensing of water quality in inland waters requires reliable retrieval algorithms, accurate atmospheric correction and consistent method for uncertainty estimation.
Dekker, A., C. M. Mannaerts, Salama, M.S., Z. Su, Salama, M.S.; id_orcid, Mannaerts, C.M., A. Dekker, W. Verhoef, Su, Z., M. S. Salama, Verhoef, W., Su, Z.; id_orcid, Dekker, A.G., Mannaerts, C.M.M.   +13 more
core   +2 more sources

Recent progress on full waveform inversion

地球与行星物理论评, 2023
Full waveform inversion is an acoustic/elastic/anelastic wave equation-based high accuracy seismic imaging method for studying the Earth's interior structure.
Hejun Zhu, Qinya Liu, Jidong Yang
doaj   +1 more source

Efficiency and robustness in Monte Carlo sampling for 3-D geophysical inversions with Obsidian v0.1.2: setting up for success [PDF]

Geoscientific Model Development, 2019
The rigorous quantification of uncertainty in geophysical inversions is a challenging problem. Inversions are often ill-posed and the likelihood surface may be multi-modal; properties of any single mode become inadequate uncertainty measures, and ...
R. Scalzo, D. Kohn, H. Olierook, G. Houseman, R. Chandra, R. Chandra, M. Girolami, M. Girolami, S. Cripps, S. Cripps   +9 more
doaj   +1 more source

Boundary-crossing identities for diffusions having the time-inversion property [PDF]

, 2010
We review and study a one-parameter family of functional transformations, denoted by (S (β)) β∈ℝ, which, in the case ...
Alili, L., Patie, P., Patie, Pierre, Alili, Larbi   +3 more
core   +1 more source

Propagator and wave-equation inversion for near-receiver material properties [PDF]

, 2004
Near-receiver material properties are required for the separation of the recorded wavefield into upgoing and downgoing P and S waves, and are also important for static time-shift corrections.
Trampert, J., Curtis, A.; id_orcid, van Vossen, R.   +2 more
core   +1 more source

Equivalent expressions and performance analysis of SLNR precoding schemes: a generalisation to multi-antenna receivers [PDF]

, 2013
In this letter, equivalent expressions of transmit precoding solutions based on the maximum signal-to-leakage-plus-noise ratio (SLNR) are derived for multiuser MIMO systems with multi-antenna receivers.
Armour, Simon M D, Doufexi, Angela, Patcharamaneepakorn, Piya   +2 more
core   +1 more source

Three-dimensional tomographic inversion of combined reflection and refraction seismic travel-time data

, 2003
A tomographic inversion method is presented for the determination of 3-D velocity and interface structure from a wide range of body-wave seismic traveltime data types.
T. A. Minshull, Minshull, Ta, J. W. D. Hobro, Singh, Sc, S. C. Singh, Hobro, Jwd, Minshull, T.A., Hobro, J.W.D., Singh, S.C.   +8 more
core   +1 more source

Pine Forest Height Inversion Using Single-Pass X-Band Pol-InSAR Data [PDF]

, 2007
International audienceA sparse pine forest is investigated at X-band on a single-pass polarimetric synthetic aperture radar interferometry (PolInSAR) data set using HH and HV channels.
Dubois-Fernandez, Pascale C., Papathanassiou, Konstantinos Panagiotis, Garestier, Franck, Papathanassiou, Konstantinos, Dubois-Fernandez, Pascale   +4 more
core   +1 more source

Analytic periods via twisted symmetric squares

Journal of High Energy Physics, 2022
We study the symmetric square of Picard-Fuchs operators of genus one curves and the thereby induced generalized Clausen identities. This allows the computation of analytic expressions for the periods of all one-parameter K3 manifolds in terms of elliptic
Rafael Álvarez-García, Lorenz Schlechter   +1 more
doaj   +1 more source

Monitoring-Informed Progressive Decoupled Inversion of Instantaneous and Creep Parameters in High Concrete Dams

Applied Sciences
Material parameter inversion for high concrete dams is essential for updating numerical models with in-service monitoring data and supporting deformation-based safety assessment. However, the joint inversion of instantaneous and creep parameters is often
Xuefeng Li, Yongmin Lu, Ying Su, Yanlong Wang, Liang Pei, Xiang Lu, Jiankang Chen   +6 more
doaj   +1 more source