Abstract:
High throughput SA TCOM on rotary wing aircraft is a challenge because when the antenna is placed on the fuselage, rotor-blades can block the antenna's beam multiple time...Show MoreMetadata
Abstract:
High throughput SA TCOM on rotary wing aircraft is a challenge because when the antenna is placed on the fuselage, rotor-blades can block the antenna's beam multiple times a second. L-band SA TCOM can avoid this blockage by using very small antennas installed in positions that allow the blockage to be circumvented. However, L-band has limited spectrum availability and provides insufficient throughput for multimedia applications. For high data-rate, cost-effective SHF operation, which requires larger antennas, L3 Linkabit is developing the Through-the-Rotors (TTR) SATCOM capability. TTR builds rotor-blade blockage mitigation into the Network Centric Waveform (NCW) and employs automated and blockage-profile adaptive techniques including advanced outer-coding with interleaving and strategic TDMA burst placement. These techniques allow bidirectional communication with rotary wing aircraft without the need for synchronization with the rotor-blade blockage period. The combination of blockage mitigation techniques and inherent NCW COTM networking capabilities allows the participation of rotary wing aircraft in scalable IP over SATCOM networks consisting of a variety of user platforms.
Date of Conference: 29-31 October 2018
Date Added to IEEE Xplore: 03 January 2019
ISBN Information: