Analysis of discrete oblique ionogram traces in sweep-frequency sky-wave high resolution backscatter

A method is presented for the analysis of discrete oblique ionogram traces observed in high resolution sweep-frequency sky-wave backscatter technique to obtain quasiparabolic ionospheric layer parameters. The method employs three data points on the oblique ionogram with one of the data points being the point of coincidence of the oblique ionogram trace with the leading edge of the backscatter. The method is applied to the analysis of an experimental oblique ionogram trace and the validity of the results is examined.