The reconstruction of non-monotonic N(h)-profiles from vertical sounding ionograms by the regularisation method

Beloff, Natalia, Denisenko, P F and Gough, M P (2002) The reconstruction of non-monotonic N(h)-profiles from vertical sounding ionograms by the regularisation method. Radio Science, 37 (4). pp. 1057-1068. ISSN 0048-6604

Full text not available from this repository.

Abstract

The problem of reconstruction of daytime nonmonotonic height profiles of electron density N(h) from ionograms of ground-based vertical sounding is considered. The regularization (REG) scheme has been proposed for determination of valley parameters. A comparison of the least squares method (LSM) with the regularization (REG) scheme was carried out using computer simulations. It is shown that LSM results are very sensitive to random errors in virtual heights. This fact leads to an unpredictably large deviation of the reconstructed N(h) profile from the real one. The application of REG methods makes the results more stable to random errors in measurements and allows us to decrease the deviation of the restored real height and valley depth from their model values by several times in comparison with LSM results.

Item Type: Article
Additional Information: Published by American Geophysical Union
Schools and Departments: School of Engineering and Informatics > Informatics
Subjects: Q Science > QA Mathematics
Q Science > QC Physics
Depositing User: Natalia Beloff
Date Deposited: 05 Oct 2006
Last Modified: 30 Nov 2012 16:49
URI: http://sro.sussex.ac.uk/id/eprint/248
📧 Request an update