Results 251 to 260 of about 91,384 (299)
Accuracy Analysis of a Pointing Mechanism for Communication Applications
IEEE Transactions on Instrumentation and Measurement, 2009 In this paper, a detailed accuracy analysis for the orientation of an innovative open-chain pointing mechanism is carried out, employing methods for indirect measurements. The particular shape of the mechanism exhibits the advantage of high structural stiffness and different pointing accuracy in comparison with a standard orthogonal axes gimbal.
S Debei, Mirco Zaccariotto
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Pointing accuracy: Does individual pointing accuracy differ for indoor vs. outdoor locations?
Journal of Environmental Psychology, 2014Pointing accuracy to and from indoor and outdoor locations was examined to reveal any significant differences in the accuracy with which we recall the arrangement of unseen locations in the world around us. Spatial ability and navigational strategy were included to better understand the cognitive processes involved in pointing accuracy and subsequent ...
Scott Bell
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Geolocation and pointing accuracy analysis for the WindSat sensor
IEEE Transactions on Geoscience and Remote Sensing, 2006 Geolocation and pointing accuracy analyses of the WindSat flight data are presented. The two topics were intertwined in the flight data analysis and will be addressed together. WindSat has no unusual geolocation requirements relative to other sensors, but its beam pointing knowledge accuracy is especially critical to support accurate polarimetric ...
William E. Purdy +5 more
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Accuracy of Children on an Open-Loop Pointing Task
Perceptual and Motor Skills, 1978 The accuracy of active and passive movements was measured in 4-yr.- to 11-yr.-old children and in adults performing a visuo-manual pointing task without seeing their limbs. Accuracy varied according to age and nature of movement. The younger children performed accurate movements.
L. Hay
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Accuracy of Pointing a Binaural Listening Array
Human Factors: The Journal of the Human Factors and Ergonomics Society, 1997We measured the accuracy with which sounds heard over a binaural, end-fire array could be located when the angular separation of the array's two arms was varied. Each individual arm contained nine cardioid electret microphones, the responses of which were combined to produce a unidirectional, band-limited pattern of sensitivity.
Tomasz R. Letowski +4 more
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Survey Review, 1972
Abstract The accuracy of pointing to stars in astronomical observations for latitude, longitude and azimuth determinations with single-second and geodetic theodolites is investigated, especially with regard to the effect of the angle between the star's path and the crosswires and also the star's rate movement.
L. Stoch, H. Papo
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Abstract The accuracy of pointing to stars in astronomical observations for latitude, longitude and azimuth determinations with single-second and geodetic theodolites is investigated, especially with regard to the effect of the angle between the star's path and the crosswires and also the star's rate movement.
L. Stoch, H. Papo
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Speed and Accuracy of Eye-Gaze Pointing
Perceptual and Motor Skills, 1997The current experiment examined the speed-accuracy trade-off of saccadic movement between two targets. Ten subjects looked alternately at two targets as fast and as accurately as possible for 2 min. under different conditions of target size, distance between targets, and direction of eye movement.
C F, Chi, C L, Lin
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Accuracy of point predictions in survival analysis
Statistics in Medicine, 2001AbstractSurvival time prediction is important in many applications, particularly for patients diagnosed with terminal diseases. A measure of prediction error taken from the medical literature is advocated as a practicable method of quantifying reliability of point predictions.
Henderson, Robin, Jones, M., Stare, J.
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The Accuracy of Floating Point Summation
SIAM Journal on Scientific Computing, 1993The author studies five summation methods for computing the sum of a number of floating point numbers. The accuracy is compared using rounding error analysis and numerical experiments. Reordering the numbers is a central idea. Statistical estimates are provided and the model with no guard digit is also considered. No particular method is uniformly more
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