Abstract
Autoscala, a computer program for the automatic scaling of ionograms, was applied to the Canadian Advanced Digital Ionosonde (CADI). The reliability of the system was tested in different conditions, in terms of reliability of automatically scaled ‘foF2’ values and electron density profiles. In order to test the reliability of the automatic scaling of foF2, the data obtained manually by a well-experienced operator were used as a reference. A value within ±0.5 MHz of the manual value was considered acceptable, which was in line with the International Union of Radio Science (URSI) limits of ±5Δ (Δ is the reading accuracy). The satisfactory performance of the software was demonstrated.
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