نتایج جستجو برای: pseudo subspace

تعداد نتایج: 66922  

2007
Halina V. Grushevskaya Leonid I. Gurskii

As is known [1], for odd number of electrons the Hartree Fock method of self-consistent field gives the equation, calculation with which help is connected to a problem of diagonalizing a matrix Lagrange multiplier. It results to possible noncommutativity of a Fock operator with the operator density matrix (a projector on subspace of orbitals for electron in a atomic core) and, hence, to absence...

azghani, masoumeh, sadeghi, Nasser,

‎Channel estimation is an essential task to fully exploit the advantages of the massive MIMO systems‎. ‎In this paper‎, ‎we propose a semi-blind downlink channel estimation method for massive MIMO system‎. ‎We suggest a new modeling for the channel matrix subspace. Based on the low-rankness property, we have prposed an algorithm to estimate the channel matrix subspace. In the next step, using o...

Journal: :Etri Journal 2022

Abstract Researchers have recently shown an increased interest in estimating the direction‐of‐arrival (DOA) of wideband noncircular sources, but existing studies been restricted to subspace‐based methods. An off‐grid sparse recovery‐based algorithm is proposed this paper improve accuracy algorithms low signal‐to‐noise ratio situations. The covariance and pseudo matrices can be jointly represent...

Journal: :Numerical Linear Algebra with Applications 1999

Journal: :Numerical Linear Algebra with Applications 1999

Journal: :International Journal of Pure and Apllied Mathematics 2013

2017
B HARITHA P MALATHI N CHAITHANAYA BHARATHI

AN ORTHOGONAL PSEUDO RANDOM SEQUENCE SUBSPACE PROJECTION FOR A HIGH CAPACITY CDMA WATERMARKING SCHEME M V S S BABU., Asst.Professor, Dept.of ECE, RISE KRISHNA SAI PRAKASAM GROUP OF INSTITUTIONS, ONGOLE. B HARITHA., IV ECE, RISE KRISHNA SAI PRAKASAM GROUP OF INSTITUTIONS, ONGOLE. P MALATHI., IV ECE, RISE KRISHNA SAI PRAKASAM GROUP OF INSTITUTIONS, ONGOLE. N CHAITHANAYA BHARATHI. IV ECE, RISE KRI...

In this paper, a new method is proposed for DOA estimation of correlated acoustic signals, in the presence of unknown spatial correlation noise. By generating a matrix from the signal subspace with the Hankel-SVD method, the correlated resource information is extracted from each eigen-vector. Then a joint-diagonalization  structure is constructed of the signal subspace and basis it, independent...

Journal: :Proceedings of the ... AAAI Conference on Artificial Intelligence 2023

Model inversion (MI) attacks have raised increasing concerns about privacy, which can reconstruct training data from public models. Indeed, MI be formalized as an optimization problem that seeks private in a certain space. Recent leverage generative adversarial network (GAN) image prior to narrow the search space, and successfully even high-dimensional (e.g., face images). However, these do not...

Journal: :journal of electrical and computer engineering innovations 0
somaye jalaei digital communications signal processing (dcsp) research lab., faculty of electrical engineering, shahid rajaee teacher training university (srttu), lavizan, 16788-15811, tehran, iran shahriar shirvani moghaddam digital communications signal processing (dcsp) research lab., faculty of electrical engineering, shahid rajaee teacher training university (srttu), lavizan, 16788-15811, tehran, iran

in this paper, a new approach for estimating the number of wideband sources is proposed which is based on rss or ism algorithms. numerical results show that the mdl-based and eit-based proposed algorithm havea much better detection performance than that in egm and aic cases for small differences between the incident angles of sources. in addition, for similar conditions, rss algorithm offers hi...

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