A Tribute to the ARTIST

摘要

The Automatic Real-Time Ionogram Scaler with True height (ARTIST) is an intelligent system developed at UMLCAR for extraction of ionospheric specification data from ionograms, images of remote sounding of the ionosphere with HF radio waves, routinely acquired by the network of ionospheric sounders “Digisonde”. The automatic ionogram interpretation (“scaling”) is a computer-hard problem that requires a model of human visual perception to extract useful ionogram image signatures and a syntactic analyzer to identify and characterize them. Introduction of the ARTIST in the early 1980s was the single most influential advance in the ionospheric sounding technology that had brought the digisonde data outside of a narrow circle of experts into realm of the operational 24/7 space weather systems.