@article{Lossmann_Meister_Raja_Madar_2009, title={Theoretical and Practical Aspects of Shortwave Broadcast Reception in the Baltics}, volume={92}, url={https://eejournal.ktu.lt/index.php/elt/article/view/10225}, abstractNote={<p>Authors of this study conducted monitoring in March 2008, in the Northern Latvia and in May 2008, in Northern Estonia. In most cases the derived a statistical model of channel variation from observed data sets verifies the log-normal nature of the signal amplitude distributions. However, in many cases the outcome fitting the measured field strength histograms to various distributions using MATLAB suggest the Birnbaum-Saunders distribution as the best match. The B-S distribution is not used before in conjunction with ionospheric channel evaluation. The variation in channel quality over time is an important characteristic of the ionospheric medium. Using the Birnbaum-Saunders distribution in conjunction of ionospheric data gives alternative approach for interpretation monitoring results and for channel simulation. Ill. 5, bibl. 5 (in English; summaries in English, Russian and Lithuanian).</p>}, number={4}, journal={Elektronika ir Elektrotechnika}, author={Lossmann, E. and Meister, M. A. and Raja, A. and Madar, U.}, year={2009}, month={Apr.}, pages={45-48} }