Title :
The comparison between the TE21 mode and the four-horn monopulse technique for LEO satellite tracking
Author :
Nateghi, Jafar ; Mohammadi, Leila
Author_Institution :
Iran Telecommun. Res. Center, Tehran, Iran
Abstract :
One of the most well-known techniques, which are used in the ground stations in order to track the LEO satellites, is monopulse. Two most popular of them are four-horn and TE21 mode monopulse techniques. In this paper the monopulse tracking technique using TE21 mode is analyzed and compared with the four-horn monopulse tracking technique. The key parameters of TE21 mode monopulse technique including the linearity and slope of the error signal are calculated. It is demonstrated that the linearity of the error signal is improved in comparison with the four-horn monopulse technique. Although the slope of the error signal decreases in the TE21 mode tracking technique, the estimation of the satellite angle is more accurate in most of the cases compared to the four-horn tracking technique.
Keywords :
antenna radiation patterns; electromagnetic wave propagation; horn antennas; satellite antennas; satellite tracking; LEO satellite tracking; TE21 mode; error signal; four-horn monopulse technique; ground stations; satellite angle; Artificial satellites; Costs; Linearity; Low earth orbit satellites; Production systems; Radar tracking; Satellite communication; Satellite ground stations; Signal generators; Tellurium; LEO satellites; four-horn monopulse; multimode monopulse technique;
Conference_Titel :
Advanced Communication Technology (ICACT), 2010 The 12th International Conference on
Conference_Location :
Phoenix Park
Print_ISBN :
978-1-4244-5427-3