Z
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Last name: ZHU
First name: Guoliang
National audience
The railway centerline is defined by a polygonal line with some level of uncertainty in the train onboard database. The goal of this paper is to estimate the train speed by GPS and to study the impact of railway centerline uncertainty on the speed estimation. The equations for first two moments of the estimated speed are obtained and compared...
Two models of railway centerline are considered. The first, "ideal", model is composed of straight line segments, cubic parabola transition curves and arcs of circles, defined by parametric equations. The second "nonideal", model represents a piecewise linear approximation of the "ideal" model. The goal of this paper is to estimate the...
International audience
International audience
National audience
Two models of railway centerline are considered. The first, "ideal", model is composed of straight line segments, cubic parabola transition curves and arcs of circles, defined by parametric equations. The second "nonideal", model represents a piecewise linear approximation of the "ideal" model. The goal of this paper is to estimate the...
The railway centerline is defined by a polygonal line with some level of uncertainty in the train onboard database. The goal of this paper is to estimate the train speed by GPS and to study the impact of railway centerline uncertainty on the speed estimation. The equations for first two moments of the estimated speed are obtained and compared...