In this chapter the processing of step S_FILTAZI is described.
Normally the step S_FILTAZI is performed at the same time as
M_FILTAZI. (PROCESS M_FILTAZI card in input file.) However, we
kept this two seperate steps to be able to only filter the slave
images in a large stack (all slaves coregistered on the same master
image). This has the advantage that for each interferogram of the
stack not a large file is created for the master. The disadvantage of
not filtering the master of course is that a small part of the
spectrum of the master is not shared with the slave spectrum,
yielding coherence loss of the interferogram.
Further information on the input/output of this step can be found in
Chapter 15 (M_FILTAZI).