Title :
Experiments on ACSSB land mobile satellite communications
Author :
Taira, Shinichi ; Ikegami, Tetsushi ; Suzuki, Ryutaro ; Suzuki, Shoichi ; Kawahara, Hideki ; Kawase, Seiji ; Tada, Shunichi
Abstract :
The performance of a land mobile earth station using the amplitude companded single sideband (ACSSB) modulation technique, and results of field experiments which were conducted at L-band (1.6/1.5 GHz) in a static environment and in rural, suburban, and urban areas, are described. Results of the experiments show that the required carrier to noise power density ratio (C/No) for voice communications is greater than 40 dBHz and the required C/No for pilot signal tracking is 34 dBHz. A comparison of the ACSSB system with the conventional narrowband frequency modulation (NBFM) system is also carried out. The analysis of the power spectral density indicates that the ACSSB system is four times as efficient as the NBFM system
Keywords :
amplitude modulation; mobile radio systems; satellite ground stations; spectral analysis; 1.5 GHz; 1.6 GHz; L-band; UHF; amplitude companded SSB; land mobile earth station; narrowband FM; pilot signal tracking; power spectral density; rural areas; suburban areas; urban areas; Demodulation; L-band; Phase locked loops; Power generation; RF signals; Radio frequency; Satellite broadcasting; Satellite communication; Satellite ground stations; Urban areas;
Conference_Titel :
Vehicular Technology Conference, 1990 IEEE 40th
Conference_Location :
Orlando, FL
DOI :
10.1109/VETEC.1990.110406
