Results 51 to 60 of about 425,843 (182)

PHASELESS SUBSPACE TRACKING [PDF]

open access: yes2018 IEEE Global Conference on Signal and Information Processing (GlobalSIP), 2018
This work takes the first steps towards solving the "phaseless subspace tracking" (PST) problem. PST involves recovering a time sequence of signals (or images) from phaseless linear projections of each signal under the following structural assumption: the signal sequence is generated from a much lower dimensional subspace (than the signal dimension ...
Nayer, Seyedehsara, Vaswani, Namrata
openaire   +2 more sources

Estimation of Interference Arrival Direction Based on a Novel Space-Time Conversion MUSIC Algorithm for GNSS Receivers

open access: yesSensors, 2019
In the estimation of the direction of arrival (DOA) for interference signals, the direction-finding error of the multiple signal classification (MUSIC) algorithm will increase in the case of multiple interferences or when the interfering signal power is ...
Hao Wang, Qing Chang, Yong Xu, Xianxu Li
doaj   +1 more source

A Distributed Sensor-Based Recursive Framework for DoA Estimation and Geolocation

open access: yesIEEE Access
This paper proposes a distributed sensor-based RECursive Subspace and Factor Graph (REC-SaFG) framework for direction-of-arrival (DoA) estimation and geolocation of a fast-moving target.
Lei Jiang   +3 more
doaj   +1 more source

An Efficient Algorithm for Direction Finding against Unknown Mutual Coupling

open access: yesSensors, 2014
In this paper, an algorithm of direction finding is proposed in the presence of unknown mutual coupling. The preliminary direction of arrival (DOA) is estimated using the whole array for high resolution.
Weijiang Wang   +3 more
doaj   +1 more source

Substation Equipment 3D Identification Based on KNN Classification of Subspace Feature Vector

open access: yesJournal of Intelligent Systems, 2017
Aiming to realize rapid and efficient three-dimensional (3D) identification of substation equipment, this article proposes a new method in which the 3D identification of substation equipment is based on K-nearest neighbor (KNN) classification of subspace
Guo Weiying, Ji Yong, Luo Yong, Zhou Yan
doaj   +1 more source

SubSpace Capsule Network

open access: yesProceedings of the AAAI Conference on Artificial Intelligence, 2020
Convolutional neural networks (CNNs) have become a key asset to most of fields in AI. Despite their successful performance, CNNs suffer from a major drawback. They fail to capture the hierarchy of spatial relation among different parts of an entity. As a remedy to this problem, the idea of capsules was proposed by Hinton.
Edraki, Marzieh   +2 more
openaire   +3 more sources

Acoustic signal localization through the use of Head Related Transfer Functions [PDF]

open access: yesJournal of Systemics, Cybernetics and Informatics, 2004
An acoustic image of space is an acoustically described visual image intended to help blind people orient themselves in space. Description is made with the aid of spatial sounds created using HRTF filters. HRTF filters are empirically acquired FIR filter
Jaka Sodnik, Rudolf Susnik, Saso Tomazic
doaj  

A further improvement of the quantitative Subspace Theorem [PDF]

open access: yes, 2010
In 2002, Evertse and Schlickewei obtained a quantitative version of the so-called Absolute Parametric Subspace Theorem. This result deals with a parametrized class of twisted heights.
G. Ferretti   +2 more
core  

Higgledy-piggledy subspaces and uniform subspace designs [PDF]

open access: yes, 2014
In this article, we investigate collections of `well-spread-out' projective (and linear) subspaces. Projective $k$-subspaces in $\mathsf{PG}(d,\mathbb{F})$ are in `higgledy-piggledy arrangement' if they meet each projective subspace of co-dimension $k ...
Fancsali, Szabolcs L., Sziklai, Péter
core   +1 more source

Wavelets in subspaces. [PDF]

open access: yesMichigan Mathematical Journal, 1996
Let \(T\) and \(D\) be the translation and unitary dilation operators on \(L^2(\mathbb{R})\) given by \((Tf)(t)= f(t- 1)\) and \((Df)(t)=\sqrt 2f(2t)\). An orthogonal wavelet for a subspace \(X\) of \(L^2(\mathbb{R})\) is a unit vector \(\psi\in X\) such that \(\{D^nT^m\psi: n,m\in\mathbb{Z}\}\) is an orthonormal basis of \(X\).
Dai, Xingde, Lu, Shijie
openaire   +3 more sources

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