Title :
Influence of antenna pattern distortions on the quality of solar radio images obtained with the radiotelescope RT-2
Author :
Antonov, A.V. ; Gerasimov, Yu.M. ; Ruzhentsev, N.V.
Author_Institution :
Inst. of Radio Astron., Nat. Acad. of Sci. of Ukraine, Kharkov, Ukraine
Abstract :
The influence of antenna pattern distortions of the radiotelescope on the quality of radio images of the Sun is analysed in this report. The mathematical simulation of effects of distortion is conducted and the valid asymmetry of a level of the first side lobes of the antenna pattern is defined. The model of the antenna pattern for the radiotelescope RT-2 is selected. This model was used in the procedure of image reconstruction
Keywords :
antenna radiation patterns; horn antennas; image reconstruction; radiotelescopes; receiving antennas; solar radiofrequency radiation; RT-2 radiotelescope; Sun; antenna pattern; antenna pattern distortions; horn antenna; image reconstruction; mathematical simulation; side lobes; solar radio images; valid asymmetry; Antenna measurements; Brain modeling; Distortion measurement; Frequency; Horn antennas; Image reconstruction; Image restoration; Mathematical model; Radio astronomy; Sun;
Conference_Titel :
Physics and Engineering of Millimeter and Sub-Millimeter Waves, 2001. The Fourth International Kharkov Symposium on
Conference_Location :
Kharkov
Print_ISBN :
0-7803-6473-2
DOI :
10.1109/MSMW.2001.947318
