Zobrazeno 1 - 10
of 214
pro vyhledávání: '"C.F.N. Cowan"'
Publikováno v:
Signal Processing. 78:127-138
We address the problem of identifying and equalizing communication channels in the presence of strong co-channel interference (CCI). In this paper, we consider the interference and noise as colored noise with unknown covariance. In addition to the fi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::375307e80f3379f4ca00dde82913e522
https://doi.org/10.1016/s0165-1684(99)00054-7
https://doi.org/10.1016/s0165-1684(99)00054-7
Publikováno v:
IFAC Proceedings Volumes. 31:185-194
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::83daafa3034630fcb42fcc5b2940f7d5
https://doi.org/10.1016/s1474-6670(17)35941-4
https://doi.org/10.1016/s1474-6670(17)35941-4
Publikováno v:
IEEE Transactions on Signal Processing. 39:1877-1884
The problem of reconstructing digital signals which have been passed through a dispersive channel and corrupted with additive noise is discussed. The problems encountered by linear equalizers under adverse conditions on the signal-to-noise ratio and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::79132ae0503b08565960622d731d7d55
https://doi.org/10.1109/78.91157
https://doi.org/10.1109/78.91157
Autor:
C.F.N. Cowan, A.C. Dent
Publikováno v:
IEEE Transactions on Circuits and Systems. 37:729-737
A signal processing technique called threshold tracking is presented; it can improve the linearity of any A/D conversion circuit. The linearization system is described, and the accuracy and signal requirements in the presence of training signal noise
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9021cdbe1027b08f515ae236f4929e5e
https://doi.org/10.1109/31.55031
https://doi.org/10.1109/31.55031
Publikováno v:
Engineering Applications of Artificial Intelligence. 3:118-126
In our recent publications, we have illustrated how pattern recognition and adaptive signal-processing techniques can be used to construct a machine learning system (MLS). The MLS is based on the manipulation of raw data to extract a set of salient f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eca45dee529e33fbc28a26f5b0339b86
https://doi.org/10.1016/0952-1976(90)90005-7
https://doi.org/10.1016/0952-1976(90)90005-7
Publikováno v:
IFAC Proceedings Volumes. 23:573-578
The purpose of this paper is to demonstrate the application of multilayer perceptrons to the problem of equalisation in digital communications systems. We begin by formulating the equalisation problem in a geometric setting, and describe how the diff
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::431b78e52cf8ffeaf8e53572d762bf17
https://doi.org/10.1016/s1474-6670(17)52779-2
https://doi.org/10.1016/s1474-6670(17)52779-2
Autor:
C.F.N. Cowan, G.J. Gibson
Publikováno v:
Proceedings of the IEEE. 78:1590-1594
The capabilities of two-layer perceptrons are examined with respect to the geometric properties of the decision regions they are able to form. It is known that two-layer perceptrons can form decision regions which are nonconvex and even disconnected,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e7d24346faaeebe7d4b020b183205ec6
https://doi.org/10.1109/5.58343
https://doi.org/10.1109/5.58343
Publikováno v:
ICASSP
A structure is proposed for adaptive removal of echoes from communications signals. It consists of an FIR adaptive filter which models the echoing channel, and an IIR programmable filter which performs the echo removal. This technique allows the use
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e2d8465c7731c6975e70350a8b91f56d
https://doi.org/10.1109/icassp.1983.1172173
https://doi.org/10.1109/icassp.1983.1172173
Publikováno v:
Electronics Letters. 31:1900-1902
A novel approach to adapting the weights of single-layer perceptron based channel equalisers is proposed, using the log-likelihood cost function and the resulting algorithm. Developing equalisers with this approach allows simpler computation, faster
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::072d72ed5ab3e47485cc867518e46920
https://doi.org/10.1049/el:19951323
https://doi.org/10.1049/el:19951323
Autor:
C.P. Callender, C.F.N. Cowan
Publikováno v:
[1992] Conference Record of the Twenty-Sixth Asilomar Conference on Signals, Systems & Computers.
It is shown that a previously published algorithm by C.F.N. Cowan (see Proc. 25th Asimolar Conf. on Signals, Systems and Computers, Pacific Grove, CA, USA, IEEE, 1991), for nonlinear equalization involving the measurement of the Mahalanobis distance
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::79e083f0c57649c189866bd0c71b60de
https://doi.org/10.1109/acssc.1992.269217
https://doi.org/10.1109/acssc.1992.269217