elliptical system

elliptical system

[ə′lip·tə·kəl ′sis·təm]
(engineering)
A tracking or navigation system where ellipsoids of position are determined from time or phase summation relative to two or more fixed stations which are the focuses for the ellipsoids.
References in periodicals archive ?
One of these is the elliptical system of needlebeams.
Volan Design was determined to give the Reebok Fusion a sleek, streamlined appearance, despite the fact that the internal mechanism was actually larger than the typical elliptical system, due primarily to the new adjustable stride functionality.
of Liverpool) examine necessary and sufficient conditions for validity of the classical maximum modulus principles of strongly elliptical systems of the second order and systems of parabolic equations.