[alma-config] A few comments on John's simulations
Al Wootten
awootten at nrao.edu
Wed Jan 19 11:56:38 EST 2000
Tamara Helfer writes:
An
> outstanding issue is whether it's better to optimize the arrays for
> overall rms sidelobe level or for smallest "worst" sidelobe.
> Another issue is if having an array with low sidelobes inside
> the primary FWHM but having a high sidelobe lurking outside the
> "optimized" region is a problem.
Fomalont commented on this, essentially, in a limited distribution email--the
shape of the sidelobes, he maintained, is as important
as their level. For instance, a hole in the uv plane caused by a
missing cluster of antennas might cause a large rolling sidelobe of low
amplitude. We have discussed the need for assessing missing groups of
antennas, to which this relates.
Al
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