Abstract:
Very-long-baseline interferometry (VLBI) is a challenging observational technique, which
requires in-depth knowledge about radio telescope instrumentation, interferometry, and the handling
of noisy data. The reduction in raw data is mostly left to the scientists and demands the use of
complex algorithms implemented in comprehensive software packages. The correct application of
these algorithms necessitates a good understanding of the underlying techniques and physics that
are at play. The verification of the processed data produced by the algorithms demands a thorough
understanding of the underlying interferometric VLBI measurements. This review describes the
latest techniques and algorithms that scientists should know about when analyzing VLBI data.