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Integrated Broadcast System (IBS)
APPENDIX C - COMMUNICATIONS
Page C-15
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Situational Awareness Data Link (SADL)
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Single Integrated Air Picture (SIAP)
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Air Traffic Control (ATC) Identification Friend or Foe (IFF), expanded Mode S Link 16 provides real time situation awareness of events taking place beyond the range of an aircraft’s onboard sensors. Air Force AWACS and Joint STARS, plus the Navy Hawkeye, maintain the data
transmission of an integrated picture to all nodes on the network via Link 16. The current system is closed. It is not IP base or web enabled.
IBS integrates the Tactical Intelligence Exchange System (TRIXS), Tactical Related Applications (TRAP), the TRAP Data Distribution System (TDDS), the Tactical Information Broadcast System (TIBS), the Global Command and Control System’s (GCCS) Near Real Time Dissemination (NRTD) interface into a single situation awareness broadcast. SADL links U.S. Air Force close air support aircraft with the U.S. Army's EPLRS. The SIAP is the air component of the Common Tactical Picture that is generated and distributed by the various sensors and command and control systems. The IFF Mode S is a secondary surveillance and communication system, which supports Air Traffic Control.
CHALLENGES
Impediments to Networked UA Communications
As the Services and industry work to make the ubiquitous network a reality, individual programs will have to address a number of complex issues. While the solutions to these issues may be highly tailored to individual program requirements, they must draw on GIG standards to assure seamless connectivity and broad based information sharing. Current data link systems focus on aircraft and sensor technology rather than network based interfaces, and often use unique formats for data transfer. The resultant, tightly coupled interfaces preclude broad interoperability.
Traditional circuit based systems have enjoyed success over the years. Many users expect circuit functionality and performance to be emulated in an IP environment. While dedicated circuits offer performance precisely tailored to the operational requirement, they represent single points of failure and often have limited interoperability/flexibility due to optimization for specialized applications. Sized for peak demand, point-to-point circuits are not always required to operate at full capacity. Due to being closed circuits, however, their surplus bandwidth is not available to external users.
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