Results 51 to 60 of about 1,356,190 (187)
A pseudo-matched filter for chaos
, 2012 A matched filter maximizes the signal-to-noise ratio of a signal. In the recent work of Corron et al. [Chaos 20, 023123 (2010)], a matched filter is derived for the chaotic waveforms produced by a piecewise-linear system.
Cohen, Seth D., Gauthier, Daniel J.
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Optimisation of the bone single photon emission computed tomography in oncology patients
Journal of Health SciencesIntroduction: The introduction of hybrid imaging systems such as Single Photon Emission Computed Tomography/Computed Tomography (SPECT/CT) has completely changed the scanning procedure of conventional diagnostic nuclear medicine protocols.
Nusret Salkica +7 more
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Signal-to-noise ratio of Gaussian-state ghost imaging
, 2008 The signal-to-noise ratios (SNRs) of three Gaussian-state ghost imaging configurations--distinguished by the nature of their light sources--are derived. Two use classical-state light, specifically a joint signal-reference field state that has either the ...
B. E. A. Saleh +4 more
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Sagnac Interferometer Enhanced Particle Tracking in Optical Tweezers
, 2010 A setup is proposed to enhance tracking of very small particles, by using optical tweezers embedded within a Sagnac interferometer. The achievable signal-to-noise ratio is shown to be enhanced over that for a standard optical tweezers setup.
Berne B J +9 more
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Material imaging study of 3D printing materials for diagnostic radiology phantom development
Brazilian Journal of Radiation SciencesThe 3D printing techniques have found applications across diverse fields, significantly enhancing design and manufacturing processes. The impact of this growth is particularly notable in radiology, where 3D printing has been applied to developing quality
Marcus Oliveira +6 more
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Signal phase switches offer greater dynamic range [PDF]
, 1970 Circuit, placed in the signal path of a closed-loop receiver to modulate telemetered data in the 10-MHz spectrum, improves signal-to-noise ratio by 3 db in a communication receiver.
Crow, R. B.
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Frontiers in PhysiologyObjectiveTo evaluate the effectiveness of 3D NerveVIEW sequence with gadolinium contrast on the visualization of pelvic nerves and their branches compared to that without contrast.MethodsParticipants were scanned twice using 3D NerveVIEW sequence with ...
Hui Liu +9 more
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IEEE Journal of the Electron Devices Society, 2015 In this paper, silicon-based Hall cross sensors with different device dimensions and carrier densities are designed and fabricated. Low frequency noise behavior regarding to the device dimension and carrier density of the Hall cross sensors has been ...
Dongli Zhang, Mingxiang Wang, Kai Sun
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Chinese Syllable and Phoneme Identification in Noise and Reverberation
Archives of Acoustics, 2014 Chinese is a tonal language, which differentiates it from non-tonal languages in the Western countries. A Chinese character consists of an initial, a final, and a tone. In the present study, the effects of noise and reverberation on the Chinese syllable,
Jianxin PENG
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Underwater acoustic signal extraction algorithm in a strong noise environment
Journal of Measurement Science and Instrumentation, 2020 In the exploration, tracking and positioning of underwater targets, it is necessary to perform frequency domain analysis and correlation calculation on the underwater acoustic signals of the target radiation.
CHANG Hao +3 more
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