DC component analysis at LWA1
نویسنده
چکیده
After the newly constructed LEDA outriggers at LWA1 became operational Hank Tillman and Steve Ellingson performed TBN observations on September 5, 2013. They only looked at the 5 outriggers and performed dipole-dipole correlations for those baselines. They noted discrepancies in the magnitude and phase of the correlation products going from baseline to baseline. More importantly they reported a strong DC offset/component in the fringe rate plots for most of the baselines that desensitizes them to the point that they are not useable as-is. This initial report lead to the detailed analysis of the situation documented in this memo.
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