High Data Rate Very Small Aperture, Terminal Networking in Support of the NewAttack Submarine

摘要

During the months of August and September 1996, the Fixed Surveillance System(FSS) program office of the Intelligence, Surveillance and Reconnaissance (ISR) Directorate of the Space and Naval Warfare Systems Command (SPAWAR) with the assistance of the Naval Research Laboratory (NRL) successfully demonstrated a high data rate (1.288 Mbps and higher) satellite network link in support of the New Attack Submarine (NSSN) Open System Critical Item Test (OSCIT). The satellite network link was established between the Naval Ocean Processing Facility (NOPF) in Dam Neck, VA and the NSSN test facility in Newport, RI. A direct sequence spread spectrum (DSSS) link as well as a narrowband Quadrature Phase Shift Keying (QPSK) link were established using a commercial satellite transponder. The DSSS signal was transmitted using a Very Small Aperture Terminal (VSAT) having a 0.6 m articulated antenna and was received by a COMSAT Radiation Systems Inc. (CRSI) Triband Transportable Satellite Earth Terminal. The narrowband signal was transmitted from the earth terminal and received by the VSAT. The two simplex links were combined at the network layer via a router and provided TCP/IP wide area network (WAN) connectivity between two local area networks (LAN) over which COTS/GOTS Joint Maritime Command Information System (JMCIS) network applications were executed. The results showed that a full duplex network link could be operated using the VSAT and commercial technology to support high rate WAN connectivity between ship(s) and shore.