Results 11 to 20 of about 4,884,732 (252)
Multi-parameter inversion with the aid of particle velocity field reconstruction
The Journal of the Acoustical Society of America, 2020 Multi-parameter inversion for medical ultrasound leads to an improved tissue classification. In general, simultaneous reconstruction of volume density of mass and compressibility would require knowledge of the particle velocity field along with the pressure field. However, in practice the particle velocity field is not measured.
Taskin, U. (author) +1 more
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Seismic Multi-Parameter Full-Waveform Inversion Based on Rock Physical Constraints
Applied SciencesSeismic multi-parameter full-waveform inversion (FWI) integrating velocity and density parameters can fully use the kinematic and dynamic information of observed data to reconstruct underground models. However, seismic multi-parameter FWI is a highly ill-
Cen Cao, Deshan Feng, Jia Tang, Xun Wang
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A Multi-Baseline PolInSAR Forest Height Inversion Method Taking into Account the Model Ill-posed Problem [PDF]
Journal of Geodesy and Geoinformation ScienceAffected by the insufficient information of single baseline observation data, the three-stage method assumes the Ground-to-Volume Ratio (GVR) to be zero so as to invert the vegetation height.
LIN Dongfang, ZHU Jianjun, LI Zhiwei, FU Haiqiang, LIANG Ji, ZHOU Fangbin, ZHANG Bing
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Frontiers in Earth Science, 2022 To better interpret the subsurface structures and characterize the reservoir, a depth model quantifying P-wave velocity together with additional rock’s physical parameters such as density, the S-wave velocity, and anisotropy is always preferred by ...
Zhonghan Liu +2 more
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Plant Methods, 2021 Background Fractional vegetation cover (FVC) is an important basic parameter for the quantitative monitoring of the alpine grassland ecosystem on the Qinghai-Tibetan Plateau.
Xingchen Lin +6 more
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Effective techniques for seismic description of reservoirs in Jiyang Depression, Bohai Bay Basin
Shiyou shiyan dizhi, 2021 A series of 3D seismic descriptions for five reservoir types in the Jiyang Depression of Bohai Bay Basin was proposed based on the comparison and analysis of a large amount of drilling and seismic data. The effective techniques for seismic description of
Yuanling GUO +3 more
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Formation and geophysical character of transitional crust at the passive continental margin around Walvis Ridge, Namibia [PDF]
Solid Earth, 2023 When interpreting geophysical models, we need to establish a link between the models' physical parameters and geological units. To define these connections, it is crucial to consider and compare geophysical models with multiple, independent parameters ...
G. Franz +4 more
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Multi-parameter Inversion of Tunnels Based on Deep Learning Constraints
Journal of Physics: Conference Series, 2023 Abstract When tunnels traverse unfavorable geological formations, they often encounter the risk of sudden water-related incidents, posing a severe threat to the safety of construction workers and property. Consequently, there is an urgent demand for conducting research on the early detection of potential water-related disasters ahead of ...
Peng Jiang, Yuting Tang, Benchao Liu
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Parameter inversion results under multi-stage shear creep conditions.
, 2023 Parameter inversion results under multi-stage shear creep conditions.
Zeqi Wang (13296445) +6 more
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Subspace Methods in Multi-Parameter Seismic Full Waveform Inversion
Communications in Computational Physics, 2020 Summary: In full waveform inversion (FWI) high-resolution subsurface model parameters are sought. FWI is normally treated as a nonlinear least-squares inverse problem, in which the minimum of the corresponding misfit function is found by updating the model parameters.
Geng, Yu +2 more
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