Automatic calculation of electron density profiles from digital ionograms: 2. True height inversion of topside ionograms with the profile-fitting method
Article first published online: 7 DEC 2012
Copyright 1982 by the American Geophysical Union.
Volume 17, Issue 4, pages 837–844, July-August 1982
How to Cite
1982), Automatic calculation of electron density profiles from digital ionograms: 2. True height inversion of topside ionograms with the profile-fitting method, Radio Sci., 17(4), 837–844, doi:10.1029/RS017i004p00837., and (
- Issue published online: 7 DEC 2012
- Article first published online: 7 DEC 2012
- Manuscript Accepted: 7 APR 1982
- Manuscript Received: 13 OCT 1981
An efficient electron density profile inversion algorithm is developed for use on automatically scaled digital topside ionograms. The profile-fitting method described here models the topside ionosphere with a single polynomial, a method particularly suited for autoscaled data because it is not too sensitive to a certain amount of scatter in the h′(ƒ) data and it makes use of ordinary and extraordinary ray echoes. The program was applied to input data consisting of O and X trace segments obtained from automatic scaling of a number of digitized ISIS ionograms. It is shown that fully automatic calculation of the topside electron density profiles from digital topside ionograms can be performed in less than 10 s on a Cyber 71 computer.