منابع مشابه
Dead Reckoning from the Pocket
We present a novel approach to enable dead reckoning in a scenario with unconstrained placement of a device in the user’s trouser pockets. Utilizing the rotation of the device due to body motion, we estimate the user’s walking direction robustly to different placements in the pocket and without additional body-worn sensors.
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This paper describes two adaptive algorithms for dead reckoning in Distributed Interactive Simulation (DIS). The first algorithm is based on the control mechanism of adaptive adjustment of threshold level and the second on automatic selection of extrapolation equation. Since a fixed threshold cannot adequately handle the dynamic relationships between moving entities, a multi-level threshold sch...
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Aimed at the demand of positioning in complicated environments such as indoor and built-up areas, the method of autonomous navigation positioning and orientation based on an adaptive step length model was proposed in this paper. Using an accelerometer placed on the human waist, stride was recognized and the relationship between the step length, stride factor, and walking speed was established. ...
متن کاملPerformance Evaluation of a Dead Reckoning Mechanism
Dead Reckoning mechanism allows to reduce the network bandwidth utilization considerably. As available bandwith is the key problem for large DIS, we expect that a Dead Reckoning mechanism will allow to increase the number of entities involved in a DIS exercise. In this paper we model a Dead Reckoning mechanism and we present an evaluation of its performance. Such a mechanism reduces the number ...
متن کاملPedestrian Dead Reckoning and its applications
First, we briefly introduce the technologies of PDR (Pedestrian Dead Reckoning) that can be used to track the location and orientation of a pedestrian. Secondly, we show some enhancement of the PDR to improve its performance on accuracy. Finally, we describe the applications of the PDR.
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ژورنال
عنوان ژورنال: ARQ (Santiago)
سال: 2013
ISSN: 0717-6996
DOI: 10.4067/s0717-69962013000100003