Results 171 to 180 of about 121,543 (219)

Comoving and inertial frames of reference

Journal of Applied Mathematics and Mechanics, 1994
The author considers the possibility of constructing nonlinear equations of general relativity by including potential energy and solves them for the motion of individual particles having nonzero four-dimensional absolute acceleration relative to a family of inertial geodesics satisfying the field equations in their orbits.
openaire   +1 more source

Transformations between inertial and rotating frames of reference

Journal of Physics A: Mathematical and General, 1979
The problem of relating measurements made in an inertial (laboratory) frame to measurements made in a rotating frame is attacked through the derivation from first principles of the appropriate transformation equations. These are then used to derive a metric for a rotating system in which the energy tensor is everywhere zero, i.e.
D G Ashworth, P A Davies
openaire   +1 more source

Observer-based Control of an Unmanned Aerial Vehicle in a Non-inertial Reference Frame

Conference on Control Technology and Applications
Unmanned Aerial Vehicle (UAV) control in a non-inertial reference frame is of great importance. Its applications expand to several examples such as target tracking, landing on moving platforms, and flying inside moving vessels. The latter is specifically
Yasmine Marani, Eric Feron, T. Laleg‐Kirati   +2 more
semanticscholar   +1 more source

Does The Temperature Of A Black-Body Depend On The Frame Of Reference?

International Journal of Engineering and Advanced Technology, 2019
In this manuscript, we establish a mathematical model to determine whether the thermodynamic temperature of a black-body depends on the Inertial Frame of Reference as viewed by different observers situated in diffserent Inertial Frames or whether the ...

semanticscholar   +1 more source

Semi-automatic calibration technique using six inertial frames of reference

SPIE Proceedings, 2004
A triaxial accelerometer calibration technique that evades the problems of the conventional calibration method of aligning with gravity is proposed in this paper. It is based on the principle that the vector sum of acceleration from three sensing axes should be equal to the gravity vector.
Alan Lai, Daniel A. James, Jason P. Hayes, Erol C. Harvey   +3 more
openaire   +1 more source

A Full-Parameter Self-Calibration Method Based on Inertial Frame Filtering for Triaxis RINS Under Swaying Base

IEEE Sensors Journal, 2019
The navigation performance of the rotational inertial navigation system (RINS) could be greatly improved by self-calibration of error parameters. The traditional instrument-level calibration depends on high-precision turntable.
Miaomiao Dai, Jiazhen Lu
semanticscholar   +1 more source

Inertial Reference Frames for Subsystems of Deformable Bodies

Moscow University Mechanics Bulletin, 2019
It is assumed that a certain reference frame is inertial for a system of moving and interacting bodies called a large system. In the framework of classical continuum mechanics, some necessary and sufficient conditions are obtained for the existence of a reference frame for a subsystem of this large system considered as an independent large system.
openaire   +1 more source

Inertial reference frames in Einstein's theory of gravitation

International Journal of Theoretical Physics, 1971
A physical definition of the inertial reference frame (IRF) is given, and the properties of solutions of the Einstein equation (with cosmological constantΛ), which admit an IRF (IRF solutions) are investigated. Their Petrov type is uniquely determined by the viscous stress tensor. Only the typesI, D or 0 are possible.
openaire   +1 more source

Inertial Navigation Employing a Common-Frame Error Model

Journal of Guidance Control and Dynamics
This paper examines an extension of previous common-frame theory in the state-error definition for inertial navigation systems (INS). In previous work, only body-frame errors were considered in relation to quantities such as biases from strapdown gyros ...
Matthew Whittaker, J. Crassidis
semanticscholar   +1 more source

Based on Non-Inertial Frame Modeling for High-Dynamic Companion Flight Control Research

Journal of Computing and Electronic Information Management
This paper investigates the intelligent companion flight control problem for mobile platforms (UGVs) and unmanned aerial vehicles (UAVs) under highly dynamic conditions.
Aijun Xu, Jian Lu
semanticscholar   +1 more source