Results 261 to 270 of about 631,049 (308)

Precision Experimental Verification of Special Relativity

Physical Review Letters, 1978
We compare the results of precision electron $g$-factor experiments at low energy and at 110 keV. The agreement between these measurements constitutes the most precise laboratory confirmation to date of the predictions of special relativity. Relativistic electromagnetic theory and Thomas precession are verified in this test.
D. Newman, G. W. Ford, A. Rich, E. Sweetman   +3 more
openaire   +1 more source

The computation of relative motion with increased precision

Celestial Mechanics, 1976
Encke's method as modified by Potter to increase the accuracy of orbit computations of gravitationally interacting bodies is applied to the problem of relative motion of non-interacting space vehicles. This technique is then combined with a simple transformation of the independent variable to arrive at a system of equations from which the relative ...
Paul Nacozy, Victor Szebehely
openaire   +1 more source

Significance of precision tests of special relativity

Physics Letters A, 1993
Abstract Recent experiments using two-photon absorption and phase comparison of masers can set bounds on Lorentz-violating preferred-frame alternatives to special relativity, but cannot give empirical knowledge concerning the one-way speed of light, since the latter depends on the synchronisation convention.
I. Vetharaniam, G.E. Stedman
openaire   +1 more source

High Precision Relative Positioning on a Mobile.

Proceedings of the 17th Annual International Conference on Mobile Systems, Applications, and Services, 2019
Although there are many commercial products and services advertising their capability of indoor navigation using smartphone, still the service coverage is highly restricted to the specific area due to tremendous effort on pre-survey and maintenance on positioning resources such as radio map of Wi-Fi signals.
Soyeon Lee, Sangjoon Park
openaire   +2 more sources

High-Precision, Symplectic Numerical, Relative Orbit Propagation

Journal of Guidance, Control, and Dynamics, 2007
This paper presents a numerical method to propagate relative orbits. It can handle an arbitrary number of zonal and tesseral terms in the geopotential. This method relies on defining a relative Hamiltonian, which describes both the absolute and the relative motion of two satellites.
Imre, E, Palmer, PL
openaire   +3 more sources

Precise Relative Positioning for Tandem Drifting Cars

ION GNSS+, The International Technical Meeting of the Satellite Division of The Institute of Navigation, 2021
Drifting provides insights into how autonomous cars handle excursions past stable limits. So far, autonomous drifting has been demonstrated for a single car where GPS carrier phase measurements provide cm-level accuracy in absolute position via base station corrections. We aim to extend the single car drifting to tandem drifting. However, in autonomous
Adyasha Mohanty, Remy Zawislak, Sriramya Bhamidipati, Grace Gao   +3 more
openaire   +1 more source

On Relative Precision in Stratified Sampling for a Mean with Fixed Cost

Biometrical Journal, 1986
AbstractThis paper considers the extrema of the relative precision (R. P.), or the ratio of the variance of optimum allocation to that of proportional allocation in stratified sampling for a mean (=Y) or total (=Y) when there is a fixed cost C=co+σnhch over L strata. The upper bound of R. P.
Bennett, B. M., Islam, M. A.
openaire   +1 more source

Precise object-relative positioning for car-like robots

2016 IEEE 19th International Conference on Intelligent Transportation Systems (ITSC), 2016
In this paper, we present a method for increasing the object-relative positioning precision of a car-like robot. In an outdoor environment and on an electric vehicle retrofitted with commercially available actuators, we achieve sub-centimeter and sub-degree accuracy, longitudinally and in heading, respectively. Most noteworthy, this is higher precision
Benjamin C. Heinrich, Dennis Fassbender, Hans-Joachim Wuensche   +2 more
openaire   +1 more source

Absolute and relative colorimetric evaluation for precise color on screen

SPIE Proceedings, 2003
This paper deals with assessing and controlling the variables required to present accurate and precise color on screen. The objective is to generate a representation of an accurate, precise, soft copy of an object color with little difference in their color and appearance. This opens new vistas in product design and quality control.
Franz Herbert, Jo Kirkenaer, Jack A. Ladson   +2 more
openaire   +1 more source

Precise Relative Orbit Estimation of INSAT Missions

AIAA/AAS Astrodynamics Specialist Conference and Exhibit, 2004
The increase in the use of geostationary satellite services calls for the number of geostationary satellites to be placed close to each other in the orbit leading to the colocation of satellites. Present trend in space communication development calls for keeping a number of clustered satellites in a specified formation to synthesize a large ...
Narayanasetti Vighnesam, Anatta Sonney
openaire   +1 more source