Zobrazeno 1 - 10
of 113
pro vyhledávání: '"Leon H. Sibul"'
Autor:
Leon H. Sibul, C.M. Coviello
Blind source separation (BSS) and blind beamforming schemes attempt to separate additive source signals, collected at a sensor array, and their direction-of-arrival (DOA). To this extent, many different and powerful algorithms have been produced to a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::268aef97220bb8b3ec630da73c4eede1
https://ora.ox.ac.uk/objects/uuid:aeb2a275-ed65-4e0e-b984-2a37bb79cffc
https://ora.ox.ac.uk/objects/uuid:aeb2a275-ed65-4e0e-b984-2a37bb79cffc
Publikováno v:
Mechanical Systems and Signal Processing. 16:719-740
Past condition monitoring techniques of gearboxes have utilised many different approaches such as time-series averaging, amplitude and phase demodulation, time–frequency distribution and wavelet analysis. Only recently have statistical approaches t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::90e966d87891f789fc9a5179e01bfbc0
https://doi.org/10.1006/mssp.2002.1504
https://doi.org/10.1006/mssp.2002.1504
Autor:
Lora G. Weiss, Leon H. Sibul
Publikováno v:
Multidimensional Systems and Signal Processing. 13:157-186
Maximum likelihood detectors of narrowband, non-stationary random echos in Gaussian noise can be efficiently implemented in the time-frequency domain. When the transmitted signals have large time-bandwidth products, the natural implementation of esti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::215328b84c5e42969c7da0309554d0a9
https://doi.org/10.1023/a:1014488726761
https://doi.org/10.1023/a:1014488726761
Autor:
Teresa L. Dixon, Leon H. Sibul
Publikováno v:
Signal Processing. 54:207-223
In this paper, wavelet transforms and wideband processing techniques are used to actively image a continuously distributed object. This paper shows that a useful estimate of the wideband spreading function (WBSF) can be obtained by operating on a noi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d28083d506beeaab4aa85ad8b163f744
https://doi.org/10.1016/s0165-1684(96)00108-9
https://doi.org/10.1016/s0165-1684(96)00108-9
Autor:
Teresa L. Dixon, Leon H. Sibul
Publikováno v:
Multidimensional Systems and Signal Processing. 7:75-86
A multidimensional Hough transform is used in conjunction with continuous wavelet transforms to aid in solving a parameterized inverse problem. The inverse problem under consideration is the characterization of distributed scatterers by means of acti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::29903a3022f355dd028828217ecc5602
https://doi.org/10.1007/bf02106108
https://doi.org/10.1007/bf02106108
Publikováno v:
Journal of Computational Acoustics. :345-369
An application to remote acoustic sensing that remains unexploited is measuring acoustic scattering and spreading effects with wideband, coherent signal processing techniques. Such techniques allow distributed objects, such as a layer of scatterers d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f1d9f0b11766f688a612931a9ab87cca
https://doi.org/10.1142/s0218396x94000221
https://doi.org/10.1142/s0218396x94000221
Publikováno v:
The Journal of the Acoustical Society of America. 96:850-856
Wideband processing of acoustic signals is described and applied to the problem of source localization in an environment with multiple sensors and sources. To localize sources, the wideband correlation receiver output is expressed as an affine convol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f5495c6564c7eb85482cacf2409dd8ab
https://doi.org/10.1121/1.410324
https://doi.org/10.1121/1.410324
Autor:
Leon H. Sibul, Adam N. Mirkin
Publikováno v:
The Journal of the Acoustical Society of America. 95:877-888
The deterministic maximum likelihood (ML) estimator is applied to the problem of estimating the locations of multiple sources in an acoustic waveguide. The structure of the estimator is examined for different noise fields, and the alternating maximiz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::36af9972722f047b2b800f22ab26dae7
https://doi.org/10.1121/1.408398
https://doi.org/10.1121/1.408398
Publikováno v:
Signal Processing. 29:299-307
We develop a systematic approach for modeling underwater propagation media using matrix representations of bounded, linear operators. Numerical representations easily incorporated into discrete-time array processors can be developed for a broad class
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c9a5ab996b88d1b81d8b161e9d82ea77
https://doi.org/10.1016/0165-1684(92)90088-e
https://doi.org/10.1016/0165-1684(92)90088-e
Autor:
John A. Tague, Leon H. Sibul
Publikováno v:
Multidimensional Systems and Signal Processing. 2:55-68
We develop a generalized singular value decomposition methodology for implementing the estimator-correlator array processor. The usefulness of this structure stems from two key properties examined in this paper. First, the structure is canonical, in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3f3a8c8922511823037297781342e085
https://doi.org/10.1007/bf01940472
https://doi.org/10.1007/bf01940472