[mmaimcal] Agenda for MMA Configuration Working Group Meeting

Tamara Helfer thelfer at heineken.tuc.nrao.edu
Wed Sep 9 12:22:23 EDT 1998


MDC Configuration Working Group Meeting
 
Date:   Monday, 14 September 1998
 
Time:   11:00 am EDT    (9:00 am Socorro, 8:00 am Tucson/CA)
 
Phone:  (804)296-7082   (CV SoundStation Premier Conference phone).
 
Agenda
------ 
1) Update on current status
        
        a) Kogan: Minimax program for synthesized beam sidelobes.
           Program features:
                -optimize for shared stations  (Memo 226)
                -restricted geometries allowed (Memo 217, 212)
                -restricted topographies allowed (Memo 202)
 
        b) Other Memos:
                -Webster nested rings/triangles (Memo 214)
                -Conway spiral geometries       (Memo 216)
                -Holdaway cost-benefit analysis 
                 for number of configs          (Memo 199)
 
2) D array
 
        a) Kogan optimization for worst sidelobe vs. D array diameter
           (Memo 217).  Assumes N=36, D = 10m, minimum spacing = 12.8m 
           (current = ?).
 
        Array Size (m)  78      82      86      90      96
        Worst Sidelobe  .390    .283    .125    .108    .102
 
        b) Future work: optimize for filled subarrays with NS elongations 
                of 1.2, 1.6, 2.9.  Want to include short EW spacings.
                Optimize for shared stations where possible.
 
3) C, B, A arrays
 
        a) Current design philosophy:  Nested rings/triangles
 
        b) Simulations



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