On Formulas and Methods for Expressing the Attitude of a Rigid Body

Year: 2002
Editor: Marjanovic D.
Author: Pezzuti, E.; Valentini, P. P.
Section: Analysis Technologies
Page(s): 1237-1244


In many fields of mechanics there is the need of expressing the attitude of a rigid body. This paper, summarizes and compares different approaches for such purpose.
In particular, the following formulations will be considered:
1. Euler angles (different conventions);
2. Bryant angles;
3 .Cardan angles;
4. Euler parameters;
5. Cayley-Klein parameters.
The paper will also focus on the sensitivity to round-off error of a methodology for computing the attitude of a body through telemetry measurements.

Keywords: Rigid body, attitude


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