Searched for: subject%3A%22Spurious%255C%2Bsignal%255C%2Bnoise%22
(1 - 10 of 10)
document
Damodaran, M. (author), Amelink, A. (author), de Boer, J.F. (author)
Retinal blood vessel oxygenation is considered to be an important marker for numerous eye diseases. Oxygenation is typically assessed by imaging the retinal vessels at different wavelengths using multispectral imaging techniques, where the choice of wavelengths will affect the achievable measurement accuracy. Here, we present a detailed analysis...
article 2018
document
Lucassen, M.P. (author), Bijl, P. (author), Roelofsen, J. (author), TNO Defensie en Veiligheid (author)
We present psychophysical data on the perception of static colored noise. In our experiments, we use the CIE94 color difference formula to quantify the noise strength and for describing our threshold data. In Experiment 1 we measure the visual detection thresholds for fixed pattern noise on a uniform background color. The noise was present in...
article 2008
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Salem, S. (author), Jacobs, E. (author), Moore, R. (author), Hogervorst, M.A. (author), Bijl, P. (author), TNO Defensie en Veiligheid (author)
Perception tests establish the effects of spatially band-limited noise and blur on human observer performance. Previously, Bijl showed that the contrast threshold of a target image with spatially band-limited noise is a function of noise spatial frequency. He used the method of adjustment to find the contrast thresholds for each noise frequency...
conference paper 2008
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Möller, S. (author), Krebber, J. (author), Smeele, P. (author), TNO Defensie en Veiligheid (author)
This paper describes four experiments which have been carried out to evaluate the speech output component of the INSPIRE spoken dialogue system, providing speech control for di.erent devices located in a ‘‘smart’’ home environment. The aim is to quantify the impact of different factors on the quality of the system, when addressed either in the...
article 2006
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TNO Defensie en Veiligheid (author), Bijl, P. (author), Lucassen, M.P. (author)
If images from multiple sources (e.g. from the different bands of a multi-band sensor) are displayed in color, Signal and Noise may appear as luminance and color differences in the image. As a consequence, the perception of color differences may be important for Target Acquisition performance with fused imagery. Luminance and color can be...
conference paper 2005
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Naus, H.W.L. (author), van Wijk, C.V. (author), TNO Fysisch en Elektronisch Laboratorium (author)
Exploiting several arrays of sensors enables simultaneous detection of a number of emitters. Fusion of the respective array data yields lines containing possible positions as a function of the frequency. Identifying multiple intersections eventually leads to unambiguous localisation of the sources. The usual unwanted ghost detections do not...
conference paper 2004
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TNO Fysisch en Elektronisch Laboratorium (author), van Vliet, F.E. (author), de Boer, A. (author)
This paper discusses the final result of development effort leading to a fully-integrated phased-array core chip. The MMIC is especially useful for active electronically-steered arrays, and integrates a full functionality including low-noise amplifier (LNA), a medium-power amplifier (MPA) matched to common high-power amplifiers (HPA) and all...
conference paper 2004
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Technisch Physische Dienst TNO - TH (author), Verlaan, A.L. (author), van den Dool, T.C. (author), Braam, B.C. (author), Calvel, B. (author), Sesselman, R. (author), Pöschel, W. (author), Dontsov, D. (author), Vega, I.C. (author), Manske, E. (author), Schuldt, T. (author), Sodnik, Z. (author)
A Darwin precursor breadboard, comprising both fine lateral and longitudinal metrology sensors was designed, built and partially tested. The lateral metrology sensor was designed and built by TNO TPD and more than meets the imposed requirements. The longitudinal metrology sensor consists of a dual wavelength interferometer with an integrated...
conference paper 2004
document
van Heijningen, M. (author), Badaroglu, M. (author), Donnay, S. (author), Gielen, G.G.E. (author), de Man, H.J. (author)
More and more system-on-chip designs require the integration of analog circuits on large digital chips and will therefore suffer from substrate noise coupling. To investigate the impact of substrate noise on analog circuits, information is needed about digital substrate noise generation. In this paper, a recently proposed simulation methodology...
article 2002
document
Dekker, R.J. (author), TNO Fysisch en Elektronisch Laboratorium (author)
Repeat-pass Synthetic Aperture Radar (SAR) imagery is useful for change detection. A disadvantage of SAR is the system-inherent speckle noise. This can be reduced by filtering. Various filter types and methods are described in the literature, but not one fits the speckle noise in change detection imagery. A new method is therefore developed in...
article 1998
Searched for: subject%3A%22Spurious%255C%2Bsignal%255C%2Bnoise%22
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