Embed Size (px)
Citation preview
TE
CH
NIC
AL
SE
MIN
AR
PR
ESEN
TA
TIO
N 2004
Presented by - Sonali Mohanty
MOBILE SATELLITE COMMUNICATION.
Technical Seminar Report On
“Mobile Satellite Communication”
under the guidance of
Mr. G.V. Kiran Kumar
submitted by
SONALI MOHANTY EC200157141
TE
CH
NIC
AL
SE
MIN
AR
PR
ESEN
TA
TIO
N 2004
Presented by - Sonali Mohanty
MOBILE SATELLITE COMMUNICATION.
INTRODUCTION
•Mobile Satellite system
•Constellation Characteristics and Orbital parameters
•Radio Link Design
•Communicators
•System Architecture
TE
CH
NIC
AL
SE
MIN
AR
PR
ESEN
TA
TIO
N 2004
Presented by - Sonali Mohanty
MOBILE SATELLITE COMMUNICATION.
Mobile Satellite Network
TE
CH
NIC
AL
SE
MIN
AR
PR
ESEN
TA
TIO
N 2004
Presented by - Sonali Mohanty
MOBILE SATELLITE COMMUNICATION.
Orbital Parameters
Perigee
X
Y
Z
O
Equatorial Plane
DescendingNode
i
Ω
ω
TE
CH
NIC
AL
SE
MIN
AR
PR
ESEN
TA
TIO
N 2004
Presented by - Sonali Mohanty
MOBILE SATELLITE COMMUNICATION.
Satellite Location w.r.t. Orbital Plane System
b
Z0
X0
Y0
a
r
D
Q (Satellite)
C O B P
υE
TE
CH
NIC
AL
SE
MIN
AR
PR
ESEN
TA
TIO
N 2004
Presented by - Sonali Mohanty
MOBILE SATELLITE COMMUNICATION.
Satellite Constellation
For constellation design• High elevation angle.• Low propagation delay.• Low battery consumption.• Inter- and intra- orbital interference in the proper limit.• The no. of satellite being visible at any time within a coverage area.
TE
CH
NIC
AL
SE
MIN
AR
PR
ESEN
TA
TIO
N 2004
Presented by - Sonali Mohanty
MOBILE SATELLITE COMMUNICATION.
RFFront end
CarrierProcessing
PowerAmplifier
Diplexer
Satellite Antenna
Satellite Transponder
TE
CH
NIC
AL
SE
MIN
AR
PR
ESEN
TA
TIO
N 2004
Presented by - Sonali Mohanty
MOBILE SATELLITE COMMUNICATION.
Modulation
•PSK
•Minimum Shift Keying
•QAM
Multiple Access
•FDMA
•TDMA
•CDMA
TE
CH
NIC
AL
SE
MIN
AR
PR
ESEN
TA
TIO
N 2004
Presented by - Sonali Mohanty
MOBILE SATELLITE COMMUNICATION.
Modulator Bank
UpConverter
High Power Amplifier
Feed System
Low NoiseAmplifier
DownConverter
Splitter
Demodulator Bank
InterfaceBase band Processing & control
Tracking system
AntennaControl
Frequency Correction system
Supporting System
FrequencyCorrection
To up-converter
Public Network
Other network Entities
Gateway
TE
CH
NIC
AL
SE
MIN
AR
PR
ESEN
TA
TIO
N 2004
Presented by - Sonali Mohanty
MOBILE SATELLITE COMMUNICATION.
System Architecture
TE
CH
NIC
AL
SE
MIN
AR
PR
ESEN
TA
TIO
N 2004
Presented by - Sonali Mohanty
MOBILE SATELLITE COMMUNICATION.
Network Procedure
• Satellite cells and satellite location area.
• Hand over management.
• Intra-FES handover.• Inter-FES handover.
• Resource management
TE
CH
NIC
AL
SE
MIN
AR
PR
ESEN
TA
TIO
N 2004
Presented by - Sonali Mohanty
MOBILE SATELLITE COMMUNICATION.
CONCLUSION
• Super GEO are in the development process.• Non-geostationary satellites are in the route to provide
services.• Hybrid Constellation.
TE
CH
NIC
AL
SE
MIN
AR
PR
ESEN
TA
TIO
N 2004
Presented by - Sonali Mohanty
MOBILE SATELLITE COMMUNICATION.
Thank you !!!
