caa a22 4500 378879847 CHVBK 20180305123429.0 cr unu---uuuuu 161128e20031215xx s 000 0 eng 10.1515/156939403322759688 doi (NATIONALLICENCE)gruyter-10.1515/156939403322759688 Computer diagnostics of surface characteristics of extended cylindrical objects by the active location technique [Elektronische Daten] [M. M. Lavrent'ev, S. Yu. Zharinov, S. M. Zerkal, M. S. Soppa] A computer-diagnostics method for examining characteristics of surface layers in conducting extended solids, based on treating data on radio-wave scattering by these solids in the meter and centimeter bands, is reported. The problem is reduced to solving a system of nonlinear algebraic equations. The computational algorithm and results of numerical experiments are described. The method allows using, as input data, not only asymptotic scattering diagrams, but also amplitude values of the reflected field measured close to the surface under study. The latter improves solution stability in complex noise-signal situations in which random distortions in receive chains occur. Copyright 2003, Walter de Gruyter Lavrent'ev M. M. Sobolev Institute of Mathematics, Siberian Branch of Russian Academy of Science, Acad. Koptyug prosp., 4, Novosibirsk, 630090, Russia. E-mails: gelios@math.nsc.ru, zerkal@math.nsc.ru aut Zharinov S. Yu Sobolev Institute of Mathematics, Siberian Branch of Russian Academy of Science, Acad. Koptyug prosp., 4, Novosibirsk, 630090, Russia. E-mails: gelios@math.nsc.ru, zerkal@math.nsc.ru aut Zerkal S. M. Sobolev Institute of Mathematics, Siberian Branch of Russian Academy of Science, Acad. Koptyug prosp., 4, Novosibirsk, 630090, Russia. E-mails: gelios@math.nsc.ru, zerkal@math.nsc.ru aut Soppa M. S. Sobolev Institute of Mathematics, Siberian Branch of Russian Academy of Science, Acad. Koptyug prosp., 4, Novosibirsk, 630090, Russia. E-mails: gelios@math.nsc.ru, zerkal@math.nsc.ru aut Journal of Inverse and Ill-posed Problems Walter de Gruyter 11/6(2003-12-15), 631-641 0928-0219 11:6<631 2003 11 jiip https://doi.org/10.1515/156939403322759688 text/html Onlinezugriff via DOI 1 research article jats NATIONALLICENCE 856 40 https://doi.org/10.1515/156939403322759688 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lavrent'ev M. M. Sobolev Institute of Mathematics, Siberian Branch of Russian Academy of Science, Acad. Koptyug prosp., 4, Novosibirsk, 630090, Russia. E-mails: gelios@math.nsc.ru, zerkal@math.nsc.ru aut NATIONALLICENCE 700 1- Zharinov S. Yu Sobolev Institute of Mathematics, Siberian Branch of Russian Academy of Science, Acad. Koptyug prosp., 4, Novosibirsk, 630090, Russia. E-mails: gelios@math.nsc.ru, zerkal@math.nsc.ru aut NATIONALLICENCE 700 1- Zerkal S. M. Sobolev Institute of Mathematics, Siberian Branch of Russian Academy of Science, Acad. Koptyug prosp., 4, Novosibirsk, 630090, Russia. E-mails: gelios@math.nsc.ru, zerkal@math.nsc.ru aut NATIONALLICENCE 700 1- Soppa M. S. Sobolev Institute of Mathematics, Siberian Branch of Russian Academy of Science, Acad. Koptyug prosp., 4, Novosibirsk, 630090, Russia. E-mails: gelios@math.nsc.ru, zerkal@math.nsc.ru aut NATIONALLICENCE 773 0- Journal of Inverse and Ill-posed Problems Walter de Gruyter 11/6(2003-12-15), 631-641 0928-0219 11:6<631 2003 11 jiip CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-gruyter