DOA estimation of LFM signal based on Krylov subspace method
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DOI: 10.1007/s11235-021-00859-x
Abstract: Direction of arrival estimation of LFM signal is an essential task in radar, sonar, acoustics and biomedical. In this paper, a short time Fourier transform multi-step knowledge aided iterative generalized minimum residual (STFT-MS-KAI-GMRES) approach is… read more here.
Keywords: estimation lfm; estimation; krylov subspace; lfm signal ... See more keywords
Accelerating the Frequency Domain Controlled-Source Electromagnetic Data Inversion Using Rational Krylov Subspace Algorithm
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DOI: 10.1109/tgrs.2022.3183838
Abstract: Controlled-source electromagnetic (CSEM) method is crucial for detecting and locating underground anomalies and structures. However, it is challenging to interpret the field data with multifrequency via 3-D CSEM inversion. To fully excavate and utilize the… read more here.
Keywords: rational krylov; inversion; controlled source; krylov subspace ... See more keywords
A Randomized Q-OR Krylov Subspace Method for Solving Nonsymmetric Linear Systems
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DOI: 10.3390/math13121953
Abstract: The most popular iterative methods for solving nonsymmetric linear systems are Krylov methods. Recently, an optimal Quasi-ORthogonal (Q-OR) method was introduced, which yields the same residual norms as the Generalized Minimum Residual (GMRES) method, provided… read more here.
Keywords: linear systems; method; krylov subspace; randomized krylov ... See more keywords