Title :
Enhanced NEXTAR VSAT terminals for satellite data network
Author :
Endo, Shoji ; Koh, Yukari ; Kachi, Seiji ; Sonetaka, Noriyoshi ; OMAGARI, SHINICHI ; Miyake, Toshiaki ; Otani, Susumu
Author_Institution :
NEC Corp., Yokohama, Japan
Abstract :
An overview of the enhanced NEXTAR VSAT (very small aperture terminal) is presented. Particular emphasis is placed on some new functions used to achieve high performance characteristics and high reliability with low cost. A simplified block diagram of the VSAT is shown
Keywords :
data communication equipment; digital radio systems; satellite ground stations; time division multiple access; AA/TDMA; NEXTAR VSAT terminals; adaptive assignment TDMA; high performance characteristics; high reliability; indoor unit; low cost; outdoor unit; satellite data network; very small aperture terminal; Antenna feeds; Aperture antennas; Artificial satellites; Band pass filters; Costs; Horn antennas; Local oscillators; Low-noise amplifiers; Power generation economics; Satellite broadcasting;
Conference_Titel :
Global Telecommunications Conference and Exhibition 'Communications Technology for the 1990s and Beyond' (GLOBECOM), 1989. IEEE
Conference_Location :
Dallas, TX
DOI :
10.1109/GLOCOM.1989.64128
