Academic literature on the topic 'Thomson's multitaper'
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Journal articles on the topic "Thomson's multitaper"
Bell, B., D. B. Percival, and A. T. Walden. "Calculating Thomson's Spectral Multitapers by Inverse Iteration." Journal of Computational and Graphical Statistics 2, no. 1 (March 1993): 119. http://dx.doi.org/10.2307/1390958.
Full textBell, B., D. B. Percival, and A. T. Walden. "Calculating Thomson's Spectral Multitapers by Inverse Iteration." Journal of Computational and Graphical Statistics 2, no. 1 (March 1993): 119–30. http://dx.doi.org/10.1080/10618600.1993.10474602.
Full textEskidere, Ömer, and Ahmet Gürhanlı. "Voice Disorder Classification Based on Multitaper Mel Frequency Cepstral Coefficients Features." Computational and Mathematical Methods in Medicine 2015 (2015): 1–12. http://dx.doi.org/10.1155/2015/956249.
Full textSpringford, Aaron, Gwendolyn M. Eadie, and David J. Thomson. "Improving the Lomb–Scargle Periodogram with the Thomson Multitaper." Astronomical Journal 159, no. 5 (April 13, 2020): 205. http://dx.doi.org/10.3847/1538-3881/ab7fa1.
Full textToulemonde, Matthieu, Olivier Basset, Piero Tortoli, and Christian Cachard. "Thomson’s multitaper approach combined with coherent plane-wave compounding to reduce speckle in ultrasound imaging." Ultrasonics 56 (February 2015): 390–98. http://dx.doi.org/10.1016/j.ultras.2014.09.006.
Full textUpadhya, Savitha S., A. N. Cheeran, and J. H. Nirmal. "Thomson Multitaper MFCC and PLP voice features for early detection of Parkinson disease." Biomedical Signal Processing and Control 46 (September 2018): 293–301. http://dx.doi.org/10.1016/j.bspc.2018.07.019.
Full textN, Zulkifli, Ria Novianti, and Meyke Garzia. "The Role of Preschool in Using Gadgets for Digital Natives Generation." JPUD - Jurnal Pendidikan Usia Dini 15, no. 2 (November 30, 2021): 221–38. http://dx.doi.org/10.21009/jpud.152.02.
Full textJensen, A. C., S. P. Nasholm, C. C. Nilsen, A. Austeng, and S. Holm. "Applying Thomson's multitaper approach to reduce speckle in medical ultrasound imaging." IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control 59, no. 10 (October 2012). http://dx.doi.org/10.1109/tuffc.2012.2444.
Full textKarnik, Santhosh, Justin Romberg, and Mark A. Davenport. "Thomson’s Multitaper Method Revisited." IEEE Transactions on Information Theory, 2022, 1. http://dx.doi.org/10.1109/tit.2022.3151415.
Full textDissertations / Theses on the topic "Thomson's multitaper"
Toulemonde, Matthieu. "Formation de voies en émission et en réception pour l'amélioration de l'imagerie ultrasonore : application à l'imagerie non linéaire des tissus biologiques." Thesis, Lyon 1, 2014. http://www.theses.fr/2014LYO10262/document.
Full textNowadays, ultrasound imaging is a common diagnostic tool thanks to its non-invasive behavior and relatively cheap equipment. Classic medical echographic imaging is based on the linear response of the biological tissue. However harmonic imaging, based on the harmonic frequencies generated by the nonlinear properties of the tissue, is more and more used for clinical application. The quantification of nonlinearity is based on the evaluation of the nonlinearity parameter which strongly influences the harmonics generation. The nonlinearity parameter estimation using an echographic approach would bring new modalities for imaging and diagnosis. However the echographic method for nonlinearity estimation is limited by two factors: the presence of speckles in the image and the focalization used during transmission, which concentrates the energy at one particular depth. The objectives of this thesis work are developing novel approaches to reduce the speckle noise using original smoothing techniques and improving the nonlinearity parameter estimation in echo mode using new transmission-reception strategies. Firstly, new speckle noise reduction approaches were investigated. The Thomson’s multitaper approach was proposed, consisting in using several different orthogonal apodizations during beamforming. This method was combined to a coherent plane-wave compounding transmission-reception strategy improving the spatial resolution and the contrast while improving the frame rate. In a second time, the nonlinearity parameter was estimated using a comparative method. The second-harmonic pressure field of a reference area was compared to the pressure field of an area where the nonlinearity parameter is unknown. However in echo-mode, the pressure field of the medium is unknown. It is assumed in this thesis work that the local pressure can be derived from envelope image local amplitude if the speckle noise is smoothed. The nonlinearity parameter estimation has been improved using plane-wave transmission and orthogonal apodizations compared to the use of a single focalization transmission
Oggigiorno, le tecniche di imaging ad ultrasuoni sono un comune strumento di diagnosi, grazie alla loro non invasività e alla relativa economicità dei sistemi. La risposta lineare dei tessuti biologici è la base per le tecniche di imaging ecografico tradizionali. La generazione di frequenze ad armoniche superiori da parte dei tessuti può essere sfruttata per sviluppare tecniche di imaging innovative (i.e., imaging armonico), che sono sempre più utilizzate per applicazioni cliniche. Tali tecniche sono basate sul metodo di valutazione del parametro di non linearità che influenza fortemente la generazione delle armoniche all’interno dei tessuti. I metodi per la stima dei suddetti parametri sfruttano solitamente un approccio ecografico tradizionale. Di conseguenza, gli effetti legati alla focalizzazione impiegata durante la trasmissione, che concentra l’energia ad una particolare profondità, e la presenza di speckle nell’immagine finale, rendono più incerta la stima del parametro di non linearità. In questa tesi sono proposti metodi innovativi finalizzati a due scopi: ridurre, nelle immagini, il rumore dovuto a speckle, tramite l’adozione di nuove tecniche di smoothing; migliorare la stima dei parametri di non linearità, tramite l’impiego di nuove strategie di beamforming in trasmissione e ricezione. Per ridurre il rumore dovuto a speckle, è stato proposto un approccio di filtraggio spaziale basato sull’impiego dei filtri di Thomson. Tale tecnica consiste nell’impiego di numerose apodizzazioni ortogonali fra di loro in fase di beamforming. Il metodo è stato in particolare combinato con la tecnica di imaging coherent plane-wave compounding, con lo scopo di migliorare la risoluzione spaziale e il contrasto e, al contempo, incrementare il frame rate. Il parametro di non linearità è stato misurato tramite un approccio comparativo. Il campo di pressione della seconda armonica in un’area di riferimento dell’immagine è stato confrontato con quello di un’area in cui il parametro di non linearità è ignoto. In questa tesi, grazie alla riduzione del rumore speckle, è stato possibile assumere che il campo di pressione
TOULEMONDE, MATTHIEU EDOUARD GEORGES. "New beamforming strategy for improved ultrasound imaging: application to biological tissues nonlinear imaging." Doctoral thesis, 2014. http://hdl.handle.net/2158/949535.
Full textBook chapters on the topic "Thomson's multitaper"
Hogan, Jeffrey A., and Joseph D. Lakey. "Thomson’s Multitaper Method and Applications to Channel Modeling." In Duration and Bandwidth Limiting, 91–127. Boston: Birkhäuser Boston, 2012. http://dx.doi.org/10.1007/978-0-8176-8307-8_3.
Full textConference papers on the topic "Thomson's multitaper"
Gaikwad, Jitendra A., Yogesh B. Gholap, and Jayant V. Kulkarni. "Bearing Fault Detection Using Thomson's Multitaper Periodogram." In 2018 Second International Conference on Intelligent Computing and Control Systems (ICICCS). IEEE, 2018. http://dx.doi.org/10.1109/iccons.2018.8663183.
Full textToulemonde, Matthieu, Olivier Basset, Christian Cachard, Matthieu Toulemonde, and Piero Tortoli. "Thomson's multitaper high frame rate compounding for speckle reduction." In 2013 IEEE International Ultrasonics Symposium (IUS). IEEE, 2013. http://dx.doi.org/10.1109/ultsym.2013.0368.
Full textToulemonde, Matthieu, Olivier Basset, Francois Varray, Piero Tortoli, and Christian Cachard. "Resolution improvement in Thomson's multitaper approach using the pulse inversion technique." In 2012 IEEE International Ultrasonics Symposium. IEEE, 2012. http://dx.doi.org/10.1109/ultsym.2012.0485.
Full textShen, Che-Chou, and Pei-Ying Hsieh. "A Flexible Speckle Reduction Strategy using Thomson’s Multitaper in High-order DMAS Beamforming." In 2019 IEEE International Ultrasonics Symposium (IUS). IEEE, 2019. http://dx.doi.org/10.1109/ultsym.2019.8926217.
Full textHansson-Sandsten, Maria. "Cross-spectrum and coherence function estimation using time-delayed Thomson multitapers." In ICASSP 2011 - 2011 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP). IEEE, 2011. http://dx.doi.org/10.1109/icassp.2011.5947289.
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