Gallery: a UML Parsing Analysis of an analysis of image formation in the MOST radiotelescope (from 2005)

This content or the technology discussed here is HISTORICAL or ARCHIVAL

I present here a UML™ Parsing Analysis of my old 1988 honours thesis An analysis of image formation by MOST (Molonglo Observatory Synthesis radioTelescope) into UML2 components, ports, and parts, using Composite Structure diagrams, to illustrate the basis of rotational aperture synthesis in the Molonglo Observatory Synthesis Telescope (MOST).

There have of course been many improvements and changes to the MOST since 1988.

This work was performed in about 2005 using the MD10EAPbeta2 early release version of MagicDraw™ UML, which offered a degree (only)1 of UML2 Port and part Property support in Composite Structure diagrams.

The MOST radio-synthesis provides and excellent test case for UML2.0 tools, and despite limitations of the older version of MagicDraw UML that I used, these diagrams remain of value to those interested in modelling instruments in UML.

Please note the parallels between the "systems" engineering composite structural views and the nearly equivalent "associative" class diagram views, which are in many cases superimposed as a diagramming trick for instructional purposes.

Note also that that this could now be much better modelled in Systems Modeling Language (SysML) !

The model is based on:

Examination of my honours thesis from An analysis of image formation by MOST (Molonglo Observatory Synthesis radioTelescope), which also contains some figures of the MOST geometry, the skymap, and the
fan-beam and synthesised beam.
The classic description of the MOST synthesis by Mills:
Mills, B., The molonglo observatory synthesis telescope, Proc.ASA, 4, 156-159, 1981
The classic description of rotational aperture synthesis by Perley:
Perley, R., Pencil beam formation by fan-beam rotation in radio astronomy, Astron.J., 84, Sep 1979
Discussions with Dave Crawford, including this paper:
Crawford, D., The ideal molonglo observatory telescope, April 1988, Dept. of Astrophysics, Univ. of Sydney.
Explanations by Michael Large, Lawrence Cram, Tony Turtle, and Bruce McAdam
A little guesswork, interpolation, and some memory wracking.

1. In 2007-2008 I worked together with the MagicDraw UML and SysML teams on greatly improving port-based engineering with MagicDraw 16.0

MOST: UML: synthesis	MOST: UML: top-level	MOST: UML: Reflector
MOST: UML: Circularly polarised ring Antenna	MOST: UML: Feed	MOST: UML: Waveguide
MOST: UML: Module	MOST: UML: Bay	MOST: UML: Arm