Checking of wrongly scaled ionograms by using of virtual height of ionospheric layers

Abstract

This paper deals with the system for the detection of wrongly automatically scaled ionograms. A method based on digital filters is used for detection. Monitored parameters are virtual heights of the different ionospheric layers. All ionospheric layers are not available during the whole day. This attribute of the ionosphere must be accepted in the algorithm for the checking of the automatically scaled ionograms. In this article layers E, F1 and F2 are used in the algorithm for checking of the ionograms. Layer D cannot be measured by a Digisond type of the ionospheric radar.