Περιγραφή Μαθήματος
1. Introduction (2 hours)
Historical overview, Financial Issues, Development of S.C., System Organization, Orbit Types, Applications – Services – ESA – the RCL-AUTh projects
2. Radio-link Analysis (6 hours)
Antenna parameters, Propagation in real conditions, Noise and SNR at the receiver input, Design limitations: Influence of the propagation media and mitigation – Regulations – Functional limitations, Overall link performance, Interference.
3. Baseband signals and Quality of Service (QoS) (2 hours)
Digital Telephony, Television – DVB-S, Radio – DAB, Data, Performance objectives, Service availability, Time Delay
4. Communication Techniques (2 hours)
Digital Transmission, Encryption – Channel encoding – Energy dispersion – Modulation, Error Probability, Spectral Efficiency, Decoding and Error Correction
5. Multiple Access (4 hours)
Call Traffic, Throughput of a Multiple Access Technique, FDMA, TDMA, CDMA, Fixed and On-demand assignment, Random Access.
6. Multibeam Satellite Networks (2 hours)
Multibeam satellites (frequency re-use, Interconnection techniques), Scanning beam interconnection, Intersatellite links (ISL)
7. Regenerative satellites (2 hours)
Radiolink via a regenerative satellite, Onboard processing, Switching
8. Communication Payload (4 hours)
Operation and characteristics, Repeater organization, Antenna coverage and technical characteristics, HELLASAT
Στοιχεία Μαθήματος
Κωδικός μαθήματος: ΗΦΤ 301
Μάθημα: Μαθήματα Κατεύθυνσης
Εξάμηνο: Τρίτο Εξάμηνο
Ώρες / εβδομάδα: 2
Πιστ. Μονάδες (ECTS): 8
Διδάσκοντες: Δ. Μπάμπας