TY  - JOUR
AU  - Lossmann, E.
AU  - Meister, M. A.
AU  - Raja, A.
AU  - Madar, U.
PY  - 2009/04/19
Y2  - 2025/01/02
TI  - Theoretical and Practical Aspects of Shortwave Broadcast Reception in the Baltics
JF  - Elektronika ir Elektrotechnika
JA  - ELEKTRON ELEKTROTECH
VL  - 92
IS  - 4
SE  - 
DO  - 
UR  - https://eejournal.ktu.lt/index.php/elt/article/view/10225
SP  - 45-48
AB  - <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>
ER  -