Now showing items 1-6 of 6
A low cost, high precision star sensor
(Stellenbosch : University of Stellenbosch, 1995-12)
ENGLISH ABSTRACT: The Sunsat microsatellite is being developed at the University of Stellenbosch. It is equipped with a high resolution earth imager which requires a sophisticated attitude determination and control system. ...
An experimental study of artificial isotropic chiral media at microwave frequencies
(Stellenbosch : Stellenbosch University, 1994-12)
ENGLISH ABSTRACT: An artificial chiral medium can be made by embedding metal helices (chiral or handed structures) with random orientation inside au achiral hnst medium. The electromagnetic behaviour of such artificial ...
Empirical state space modelling with application in online diagnosis of multivariate non-linear dynamic systems
(Stellenbosch : Stellenbosch University, 1999-12)
ENGLISH ABSTRACT: System identification has been sufficiently formalized for linear systems, but not for empirical identification of non-linear, multivariate dynamic systems. Therefore this dissertation formalizes and ...
Analysis and synthesis algorithms for the electric screen Jauman electromagnetic wave absorber
(Stellenbosch : Stellenbosch University, 1993-11)
ENGLISH ABSTRACT: An extensive literature study revealed numerous Jauman absorber examples with reasonable absorption properties. Unfortunately, tractable and detailed design techniques were found to be scarce, and often ...
Low Earth orbit satellite constellation control using atmospheric drag
(Stellenbosch : University of Stellenbosch, 1997-03)
This dissertation considers the feasibility of using atmospheric drag to control constellations of micro-satellites in low Earth orbits. The constellation control requirements include an acquisition phase and a maintenance ...
The transputer virtual memory system
(Stellenbosch : Stellenbosch University, 1990)
ENGLISH ABSTRACT: The transputer virtual memory system provide, for the transputer without memory management primitives, a viable virtual memory system. This report evaluates the architecture and its parameters. The ...