Results 151 to 160 of about 1,941 (196)
Some of the next articles are maybe not open access.
Practical DOA Estimation via a Network of DOA-Blind Sensors
2007 IEEE International Conference on Acoustics, Speech and Signal Processing - ICASSP '07, 2007We consider the problem of DOA (direction of arrival) estimation of an acoustic wavefront by a wireless sensor network (WSN) within the SENMA architecture (a mobile agent (MA) repeatedly polls the sensors lying inside its field of view). The sensors, which are random in number and location, are DOA-blind and simply emit a pulse train synchronized to ...
Marco Guerriero +3 more
openaire +1 more source
DOA Estimation in heteroscedastic noise
Signal Processing, 2019The paper considers direction of arrival (DOA) estimation from long-term observations in a very noisy environment. The concern is to derive methods obtaining reasonable DOAs at very low SNR. The noise is assumed zero-mean Gaussian and its variance varies in time and space, causing stationary data models to fit poorly over long observation times ...
Peter Gerstoft +3 more
openaire +3 more sources
Rational Arrays for DOA Estimation
ICASSP 2022 - 2022 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2022© 2022 IEEE. This work was supported by the Office of Naval Research grant N00014-21-1-2521, and the California Institute of Technology.
Kulkarni, Pranav, Vaidyanathan, P. P.
openaire +2 more sources
DOA estimation with hexagonal arrays
Proceedings of the 1998 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '98 (Cat. No.98CH36181), 2002Hexagonal arrays are widely used in practice but have received less attention in the optimum array processing literature. In this paper, we show how unitary ESPRIT can be applied to hexagonal arrays for direction-of-arrival (DOA) estimation. The resulting estimates exhibit good threshold behavior, and are close to the Cramer-Rao bound above threshold ...
Zhi Tian, Harry L. Van Trees
openaire +1 more source
2013 Fifth International Conference on Computational Intelligence, Communication Systems and Networks, 2013
In this paper we present a Linear Vector Quantization (LVQ) neural network approach to estimate Direction of Arrivals (DOA) of narrowband sources. It is shown that appropriately trained LVQ networks along with a specific postprocessing scheme can successfully be used for DOA estimation purposes. We take advantage of the execution speed of LVQ algorithm
Andre Faye +2 more
openaire +1 more source
In this paper we present a Linear Vector Quantization (LVQ) neural network approach to estimate Direction of Arrivals (DOA) of narrowband sources. It is shown that appropriately trained LVQ networks along with a specific postprocessing scheme can successfully be used for DOA estimation purposes. We take advantage of the execution speed of LVQ algorithm
Andre Faye +2 more
openaire +1 more source
2015 IEEE International Conference on Digital Signal Processing (DSP), 2015
This work addresses the problem of direction-of-arrival (DOA) estimation, where true DOAs are not on the sampling grid when sparse signal recovery concept is adopted. To estimate DOAs exploring its sparse property, a basis is usually required. However, off-grid issue persists even when a large basis is constructed.
Hongqing Liu +3 more
openaire +1 more source
This work addresses the problem of direction-of-arrival (DOA) estimation, where true DOAs are not on the sampling grid when sparse signal recovery concept is adopted. To estimate DOAs exploring its sparse property, a basis is usually required. However, off-grid issue persists even when a large basis is constructed.
Hongqing Liu +3 more
openaire +1 more source
Doa dalam Al-Qur’an: Studi terhadap Doa-Doa Para Nabi
Ikhlas : Jurnal Ilmiah Pendidikan IslamPrayer constitutes the essence of worship in Islam and serves as a profound expression of faith, resilience, and spiritual submission. This study aims to unveil the multifaceted dimensions of the prophets’ prayers in the Qur’an by integrating the adābi ijtimāʾī approach of Tafsir Al-Azhar (Buya Hamka) and the lughāwī approach of Tafsir al-Kashshāf ...
openaire +1 more source
Array interpolation and DOA MSE reduction
IEEE Transactions on Signal Processing, 2005Interpolation or mapping of data from a given real array to data from a virtual array of more suitable geometry is well known in array signal processing. This operation allows arrays of any geometry to be used with fast direction-of-arrival (DOA) estimators designed for linear arrays. In an earlier companion paper , a first-order condition for zero DOA
Per Hyberg +2 more
openaire +2 more sources
Difference-Frequency MUSIC for DOAs
IEEE Signal Processing Letters, 2022Yongsung Park +2 more
openaire +1 more source