Title :
Transmission performance of ACSSB on satellite channels
Author :
Taira, Shinichi ; Ikegami, Tetsushi ; Suzuki, Ryutaro ; Suzuki, Shoichi ; Kawahara, Hideki ; Nagas, Hiroyuki ; Tada, Shunichi
Abstract :
The voice performance and digital signal transmission performance of ACSSB (amplitude companded single sideband modulation) on satellite channels are described. The results of field experiments for evaluating the performance show that the required carrier to noise power density ratio, C/No, for voice communications is greater than 45 dB-Hz, that data transmission of 1200 b/s with a bit error rate of 10 -3 is made possible in the minimum link budget for voice communications, and that it is possible to transmit GIII facsimile signals with good quality when the C/No is more than 50 dB-Hz. A study on the required total output power of a transponder in an ACSSB multichannel system for voice signal transmission is made, and a comparison of the ACSSB system with the conventional NBFM (narrowband frequency modulation) system indicates that the channel capacity of ACSSB is greater than that of NBFM not only with regard to the frequency bandwidth limit of a transponder but also in its output power limit
Keywords :
amplitude modulation; channel capacity; mobile radio systems; satellite relay systems; 1200 bit/s; ACSSB multichannel system; GIII facsimile signals; NBFM; amplitude companded single sideband modulation; bit error rate; carrier to noise power density ratio; channel capacity; digital signal transmission performance; minimum link budget; mobile radio; narrowband frequency modulation; required total output power; satellite channels; transponder frequency bandwidth limit; voice communications; Amplitude modulation; Bit error rate; Data communication; Digital modulation; Facsimile; Narrowband; Power generation; Satellites; Signal to noise ratio; Transponders;
Conference_Titel :
Vehicular Technology Conference, 1991. Gateway to the Future Technology in Motion., 41st IEEE
Conference_Location :
St. Louis, MO
Print_ISBN :
0-87942-582-2
DOI :
10.1109/VETEC.1991.140533