Inversion Based Adaptive Feedforward Control for Multivariable Systems
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DOI: 10.1016/j.ifacol.2020.12.2069
Abstract: This paper presents a novel adaptive feedforward control (AFC) method for rejecting sinusoidal disturbances with known frequencies acting on multi-input-multi-output (MIMO) discrete time linear systems based on the H-infinity synthesis. First, the gradient AFC (GAFC)… read more here.
Keywords: gafc; feedforward control; inversion based; adaptive feedforward ... See more keywords
Efficient Tomographic Inversion Based on Refined Scatterer Pre-Estimation
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DOI: 10.1109/lgrs.2022.3203037
Abstract: During the last decade, the synthetic aperture radar (SAR) tomography (TomoSAR) technique in 3-D reconstruction is significantly improved. In particular, compressed sensing (CS) has become the best suit for urban tomographic inversion. Among CS algorithms,… read more here.
Keywords: inversion based; tomographic inversion; pre estimation; estimation ... See more keywords
Sparse-Promoting 3-D Airborne Electromagnetic Inversion Based on Shearlet Transform
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DOI: 10.1109/tgrs.2021.3061160
Abstract: The conventional, L2-norm-based, regularization term in electromagnetic (EM) inversions implements smooth constraints on model complexity in the space domain, which can smoothen the boundaries of complex underground structures. To improve the resolution of 3-D frequency-domain… read more here.
Keywords: shearlet transform; inversion; shearlet; based shearlet ... See more keywords
Structure-Guided L1-2 Minimization for Stable Multichannel Seismic Attenuation Compensation
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DOI: 10.1109/tgrs.2022.3217293
Abstract: Absorption in subsurface media severely degrades seismic data quality. Seismic attenuation compensation as an important processing method can effectively improve the resolution and fidelity of seismic data. Based on sparse reflectivity model and attenuated convolution… read more here.
Keywords: structure; compensation; seismic attenuation; inversion based ... See more keywords
Inversion‐based deblending using migration operators
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DOI: 10.1111/1365-2478.13015
Abstract: ABSTRACT In this paper, we compare the denoising‐ and inversion‐based deblending methods using Stolt migration operators. We use Stolt operator as a kernel to efficiently compute apex‐shifted hyperbolic Radon transform. Sparsity promoting transforms, such as… read more here.
Keywords: inversion based; migration operators; based deblending; blending interferences ... See more keywords