1. Research in Satellite
Communications
March 2013
Contact: Carlos Mosquera
mosquera@gradiant.org
GALICIAN RESEARCH AND DEVELOPMENT CENTER IN ADVANCED TELECOMMUNICATIONS

2. SatCom in Gradiant: an
Overview
Key technologies
Specific Communications Hardware & Software
DVB-S2, DVB-SH and S-MIM among other standards
User link segment
Prototyping of RF subsystems
IP portfolio
DVB-S2 Software Signal Analysis
Project participation
FP7
Under contract
Organization of events
6th Advanced Satellite Multimedia Systems Conference, Baiona,
September 2012
The Satellite Role in the Mobile Communications Arena, Vigo, June
2012
CENTRO TECNOLÓXICO DE TELECOMUNICACIÓNS DE GALICIA

3. Specific Communications HW & SW
FPGA/DSP/GPU implementation of digital communications
algorithms
VHDL-Verilog, C, C++
Altera-Xilinx, Analog Devices-Texas Instruments
System-on-chip integration
Enhanced location services
Measurement equipment
Interactive S-band services
CENTRO TECNOLÓXICO DE TELECOMUNICACIÓNS DE GALICIA

4. User Link Research
Post DVB-S2 studies
Fading countermeasures
Multibeam architectures
Hybrid terrestrial-satellite solutions
CENTRO TECNOLÓXICO DE TELECOMUNICACIÓNS DE GALICIA

5. Analog Design and Prototyping
RF prototype development.
PCB design and prototyping.
Development of RF circuits (LNA, VCOs, PLLs, DDSs, Mixers, Filters, etc).
Analog-Digital interfaces.
Signal conditioning.
Location and correction of EMI problems.
Design, implementation and characterization of antennas.
CENTRO TECNOLÓXICO DE TELECOMUNICACIÓNS DE GALICIA

6. IP: DVB-S2 Signal Analysis
Ready to use Windows application with an advanced
touch-screen compatible GUI to be executed at the target
instrument or in an external computer through any
interface (GPIB, Ethernet, USB, ...)
High performance DVB-S2 synchronization and
demodulation capable successful analysis of very weak
signals
Fast and accurate signal quality characterization
CENTRO TECNOLÓXICO DE TELECOMUNICACIÓNS DE GALICIA

7. Project Cases
BATS: Broadband Access via Integrated Terrestrial &
Satellite Systems
FP7 IP, 2013-2015
EMULSION: Emergency and Multimedia Satellite
Interface On-the-move
S-Band Satellite
Under contract, 2010-2012
Forward Link
Ku band
Ku band
SERVICE Return Link TERMINALS
PLATFORM
IP
IP
Forward Link
HUB
Return Link
CGC
CENTRO TECNOLÓXICO DE TELECOMUNICACIÓNS DE GALICIA

8. Organization of events and
international presence
The Satellite Role in the
Mobile Communications
Arena, Vigo (SPAIN)
June 15th, 2013
Gradiant is member of ISI, the
European Technology Platform
in Satellite Communications
CENTRO TECNOLÓXICO DE TELECOMUNICACIÓNS DE GALICIA