Results 51 to 60 of about 123,245 (174)
Robust Gridless Estimation of Angles and Delays for Full-Dimensional Wideband mmWave Channels
IEEE Open Journal of Signal Processing, 2023 In this paper, we consider robust channel estimation for a millimeter wave (mmWave) massive MIMO system with uniform planar arrays (UPA). For many gridless angle estimation methods of mmWave channels, the channel gains needs to be time-invariant during ...
Ting-Ming Yang, Yuan-Pei Lin
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The Matrix Sign Function Method and the Computation of Invariant Subspaces
SIAM Journal on Matrix Analysis and Applications, 1997 Summary: A perturbation analysis shows that if a numerically stable procedure is used to compute the matrix sign function, then it is competitive with conventional methods for computing invariant subspaces. Stability analysis of the Newton iteration improves an earlier result of \textit{R.
Byers, Ralph +2 more
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Frontiers in Psychology, 2021 The brain-computer interface (BCI) interprets the physiological information of the human brain in the process of consciousness activity. It builds a direct information transmission channel between the brain and the outside world.
Tongguang Ni +3 more
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Invariant subspace methods in linear multivariable distributed systems and lumped distributed network synthesis [PDF]
Journal of the Franklin Institute, 1976 Linear multivariable-distributed systems and synthesis problems for lumped-distributed networks are analyzed. The methods used center around the invariant subspace theory of Helson-Lax and the theory of vectorial Hardy functions. State-space and transfer function models are studied and their relations analyzed.
J.S. Baras, P. Dewilde
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Bounds on changes in Ritz values for a perturbed invariant subspace of a Hermitian matrix
, 2008 The Rayleigh-Ritz method is widely used for eigenvalue approximation. Given a matrix $X$ with columns that form an orthonormal basis for a subspace $\X$, and a Hermitian matrix $A$, the eigenvalues of $X^HAX$ are called Ritz values of $A$ with respect to
A. V. Knyazev +4 more
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Discrete-Time Exponentially Stabilizing Fuzzy Sliding Mode Control via Lyapunov’s Method
Advances in Fuzzy Systems, 2015 The exponentially stabilizing state feedback control algorithm is developed by Lyapunov’s second method leading to the variable structure system with chattering free sliding modes.
Radiša Ž. Jovanović +1 more
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Sensors, 2018 In this paper, a three-dimensional (3D)-subspace-based azimuth angle, elevation angle, and range estimation method with auto-pairing is proposed for frequency-modulated continuous waveform (FMCW) radar with an L-shaped array.
HyungSoo Nam +3 more
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A new method for constructing invariant subspaces
Journal of Mathematical Analysis and Applications, 2007 The method of compatible sequences is introduced in order to produce non-trivial (closed) invariant subspaces of (bounded linear) operators. Also a topological tool is used which is new in the search of invariant subspaces: the extraction of continuous selections of lower semicontinuous set valued functions. The advantage of this method over previously
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Multilayer Cascade Screening Strategy for Semi-Supervised Change Detection in Hyperspectral Images
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022 Change detection (CD) is an important application of remote sensing, which provides information about land cover changes on the Earth's surface.
Lian Liu +3 more
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Mathematics, 2023 Herein, we propose a novel model-based simultaneous multi-slice (SMS) reconstruction method by exploiting data-driven parameter modeling for highly accelerated T1 parameter quantification.
Sugil Kim, Hua Wu, Jae-Ho Han
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