Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Ahmed Zoubir"'
Publikováno v:
IET Communications. 5:476-483
Transform domain communication systems (TDCSs) is a technology that avoids frequency underutilisation. Its bit error rate (BER) performance has been well studied until now, but it is still unknown what is the maximum spectrum efficiency one can expec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cb036c4d52c7e0dcfd0a5dab2d331c63
https://doi.org/10.1049/iet-com.2010.0032
https://doi.org/10.1049/iet-com.2010.0032
Autor:
Ahmed Zoubir, Yide Wang
Publikováno v:
Signal Processing. 88:1071-1078
In this paper, we consider the problem of estimating the direction-of-arrivals (DOAs) and angular spreads of uncorrelated coherently distributed sources. The proposed method enables a decoupled estimation of the DOAs from that of the angular spreads
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e6d720b4b265cf40a4f781df393e638c
https://doi.org/10.1016/j.sigpro.2007.11.002
https://doi.org/10.1016/j.sigpro.2007.11.002
Autor:
Yide Wang, Ahmed Zoubir
Publikováno v:
Signal Processing. 88:428-435
The performance of the generalized beamforming (beamscan) and the generalized minimum variance distortionless response (MVDR) estimators are analyzed in this paper. We consider the case of coherently distributed sources, and analyse the errors of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8730f644a124343f0b457512c5711f9e
https://doi.org/10.1016/j.sigpro.2007.08.010
https://doi.org/10.1016/j.sigpro.2007.08.010
Publikováno v:
IEEE Transactions on Signal Processing. 56:532-542
In this paper, a new subspace-based algorithm for parametric estimation of angular parameters of multiple incoherently distributed sources is proposed. This approach consists of using the subspace principle without any eigendecomposition of the covar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f06de5e134a5d1d57350ef14dbdc3ebd
https://doi.org/10.1109/tsp.2007.907877
https://doi.org/10.1109/tsp.2007.907877
Publikováno v:
Annales Des Télécommunications. 62:1171-1184
In this paper, we consider the problem of estimating the direction-of-arrivals (doas) and angular spreads of uncorrelated coherently distributed sources. The proposed methods enable a decoupled estimation of the doas from that of the angular spreads
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f7ae99c87d62ee81277311461c4e38cf
https://doi.org/10.1007/bf03253311
https://doi.org/10.1007/bf03253311
Publikováno v:
Signal Processing. 86:733-743
The EXtended Invariance Principle (EXIP) has been applied to the structured covariance estimation of a zero-mean Gaussian vector, the resulting method was named COvariance Matching Estimation Techniques (COMET). This technique has been recently used
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::46481bd5c3fa3f9163d8dcb63698afe5
https://doi.org/10.1016/j.sigpro.2005.07.013
https://doi.org/10.1016/j.sigpro.2005.07.013
Publikováno v:
SPAWC 2011
The 12th IEEE International Workshop on Signal Processing Advances in Wireless Communications
The 12th IEEE International Workshop on Signal Processing Advances in Wireless Communications, Jun 2011, San Francisco, United States. pp.2011
The 12th IEEE International Workshop on Signal Processing Advances in Wireless Communications
The 12th IEEE International Workshop on Signal Processing Advances in Wireless Communications, Jun 2011, San Francisco, United States. pp.2011
In the last decades, many solutions have been proposed to cope with high Peak-to-Average Power Ratio (PAPR) of OFDM communication systems. We propose here to address the high PAPR of signals whose spectrum's amplitude respects a given mask. A versati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5e929342a58b3e387207aa7e504ac7b0
https://hal.archives-ouvertes.fr/hal-00795220
https://hal.archives-ouvertes.fr/hal-00795220
Publikováno v:
2011 International Conference on Multimedia and Signal Processing.
Peak-to-Average Power Ratio (PAPR) is a major challenge to overcome when dealing with multi-carrier systems such as OFDM communication systems. We focus here on signals whose spectrum's amplitude respects a fix spectrum mask, as the ones used in Tran
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a1533fb40ab10fdc3a87048ebda36cd2
https://doi.org/10.1109/cmsp.2011.15
https://doi.org/10.1109/cmsp.2011.15
Publikováno v:
CrownCom
ICST-CrownCom 2011
6th International ICST Conference on Cognitive Radio Oriented Wireless Networks
6th International ICST Conference on Cognitive Radio Oriented Wireless Networks, May 2011, Osaka, Japan. pp.2011
ICST-CrownCom 2011
6th International ICST Conference on Cognitive Radio Oriented Wireless Networks
6th International ICST Conference on Cognitive Radio Oriented Wireless Networks, May 2011, Osaka, Japan. pp.2011
Transform Domain Communication System (TDCS) is a Cognitive Radio technology that has been thoroughly studied by the Air Force Institute of Technology because of its resiliency against jammers or interferences while being noise-like. However TDCS' hu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::26b69f4c74d3724e1d19ff8e451014bf
https://hal.science/hal-00795217
https://hal.science/hal-00795217
Publikováno v:
ICASSP (2)
In this paper, a new subspace-based algorithm for parametric estimation of angular parameters of multiple incoherently distributed sources is proposed. This method consists of using the subspace principle without any eigendecomposition of the covaria
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e1c0fb4a0761f84f52108963f2f97d6
https://doi.org/10.1109/icassp.2007.366428
https://doi.org/10.1109/icassp.2007.366428