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