USE OF MATHEMATICAL MODELS OF THE IONOSPHERE FOR STUDYING THE PROPAGATION OF ELECTROMAGNETIC WAVES
S. A. Ishanov,a} E. I. Levanov,b} V. V. Medvedev,a} V. A. Zalesskaya,a} and K. I. Novikovaa} UDC 622.276 Using theoretical and experimental models, the results of a computational experiment on the propagation of radiowaves are presented. It is shown that to more accurately calculate the angle of arrival, it is necessary to take into account the lower ionosphere, i.e., the D region. a}I. Kant Russian State University, 14 Nevskii Str., Kaliningrad, 236041, Russia; email: valentina_z_11@mail.ru; b}Institute of Mathematical Modeling, Russian Academy of Sciences, 4A Miusskaya Squ., 125047, Russia. Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 81, No. 6, pp. 1198-1202, November-December, 2008. Original article submitted June 1, 2007; revision submitted February 2, 2008.