Issue |
A&A
Volume 377, Number 1, October I 2001
|
|
---|---|---|
Page(s) | 368 - 376 | |
Section | Numerical methods and codes | |
DOI | https://doi.org/10.1051/0004-6361:20011105 | |
Published online | 15 October 2001 |
Interferometric array design: Optimizing the locations of the antenna pads
DEMIRM, Observatoire de Paris, 61 Av. de l'Observatoire, 75014 Paris, France
Received:
2
July
2001
Accepted:
31
July
2001
The design of an interferometric array should allow optimal instrumental response regarding all possible source positions, times of integration and scientific goals. It should also take into account constraints such as forbidden regions on the ground due to impracticable topography. The complexity of the problem requires one to proceed by steps. A possible approach is to first consider a single observation and a single scientific purpose. A new algorithm is introduced to solve efficiently this particular problem called the configuration problem. It is based on the computation of pressure forces related to the discrepancies between the model (as determined by the scientific purpose) and the actual distribution of Fourier samples. The flexibility and rapidity of the method are well adapted to the full array design. A software named APO that can be used for the design of new generation interferometers such as ALMA and ATA has been developed.
Key words: instrumentation: interferometers / methods: numerical
© ESO, 2001
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.