The performance of the baseline ALMA correlator in spectral resolution can be easily and inexpensively enhanced. The time-division architecture of the system is completely consistent with the requirements of a so-called digital hybrid correlator. By replacing the present digital filter card with one of a more complex design, the spectral resolution performance of the system could be increased by factors as high as 32.
View a pdf version of ALMA Memo #441.
Last modified: 2002-11-18
alma-memos@nrao.edu