In this chapter, an automatic dependent surveillance (ADS) application with fault tolerant property will be discussed. In narrow sense, fault-tolerant technologies guarantee continuous or uninterrupted operations of systems, units or devices under faulty conditions. In broader sense, fault-tolerant technologies guarantee to accomplish continuous or uninterrupted tasks under restricted conditions. An ADS technology for air-traffic radar systems accomplishes continuous or uninterrupted aircraft surveillance by sharing resources among radars with network. It guarantees safe and effective air-traffic operation in congested airspaces.

Chapter Contents:

• Abstract
• 5.1 Introduction/Backgrounds
• 5.2 Air-traffic control radar system
• 5.2.1 SSR Mode S
• 5.2.2 Mode S surveillance protocol
• 5.3 Emerging problems
• 5.3.1 RF congestion problem
• 5.3.2 Interrogator identifier shortage problem
• 5.4 Autonomous decentralized surveillance system
• 5.4.1 Autonomous ground site
• 5.4.2 Data field
• 5.5 Autonomous continuous target tracking technology
• 5.5.1 Autonomous data sharing
• 5.5.2 Autonomous judgement
• 5.5.3 Autonomous agreement
• 5.5.4 Autonomous boundary target handover
• 5.6 Simulation
• 5.6.1 Model
• 5.6.2 Simulation results
• 5.6.2.1 RF load
• 5.6.2.2 System load
• 5.7 Practical experiments
• 5.7.1 Network structure
• 5.7.2 Experiment results
• 5.8 Conclusion
• References

Inspec keywords: radar; air traffic control; surveillance; aircraft; fault tolerance

Other keywords: fault-tolerant technologies; uninterrupted tasks; continuous tasks; air-traffic radar systems accomplishes; units; effective air-traffic operation; broader sense; uninterrupted aircraft surveillance; ADS technology; narrow sense; air-traffic control systems; devices; ADS fault tolerant property; automatic dependent surveillance application

Subjects: Aerospace control; Aerospace engineering computing