Temi di ricerca e sviluppo

1

• Temi di ricerca e sviluppo
• Perugia 19 giugno 2003

2

TLC EO missions top level enabling
technologies
3

Ka band OBP-based Open Standard communication
mission
TLC systems designed to provide the
telecommunication infrastructure to satellite
operators to open new markets.
Enabling technologies DVB/RCS ,MPEG2 , DVB/RCS
ATM Processors. Multibeam antennas with
Autotracking subsystems. Technologies for output
power flexibility (Multiport amplifiers).
Multicarrier Demultiplexers-emodulators-
Decoders . Digital Switch Matrices . Ka RF
technologies
Skyplex demod
4

Advanced Mobile Missions
The Advanced Mobile Missions have changed their
background in the last year. The original goal of
the Satellite Community (manufacturers and
satellite operators) was to have a common
standard for terrestrial and satellite
UMTS,aiming at defining a 3G MMS.
Enabling technologies Large reflector
technologies. DSP OBP (non regenerative)
Digital chanellizzers, Digital BFN IF analog
chanellizzers (SAWfilter).
12 m S/L band reflector
5

Digital Audio Broadcasting missions
DAB services are offered in U.S. by two
companiesXM Radio and Sirius Radio. A third
player is Worldspace, that is delivering CD
quality audio (and other data) in non-developed
countries.
Enabling technologies Multispot antennas for
MEO satellites. FDMA/TDM(CDM) on Board
Processors. High Power S(L) band TWTA.
48 dual EPC Sband TWTA (5KW total RF)
6

Earth Ocean Watch Mission
The mission for what specifically concerns the
topography of the oceans will foresee the use of
dual frequency radar altimeter, a two frequency
radiometer and a precise orbit determination
package
Enabling Technologies -RF architectures as
combination of altimeter and radiometer
functions. - Multifrequency antenna for common
altimeter / radiometer operations. - Solid State
amplifiers in Ku band (10-40 Watts).
Microwave receiver
7

IOTA (Interferometria ottica per Osservazione
della Terra ad Alta quota)
For the EO applications the low orbits (LEO),
typically between 500 to 1,000 km in altitude,
are usually employed in order to get higher
spatial and radiometric resolutions. However the
GEO offers several advantages for the earth
observations among all the capability of a
continuous observations of the same geographic
area .
Enabling technologies Synthetic aperture
technique applied at the GEO orbit capable to
regenerate the original image starting from
signals coming from a set of telescopes (or a
multi-aperture telescope) observing
simultaneously the wanted object .
8

Basic technologies High speed ASICs (application
specific integrated circuit) MMIC
receivers Microwave switches High power and PIM
free components EMC ESD models and test Electric
power subsystems Testing support S/W tools
9

High Speed ASICs
Design and development of high data rate ASICs
for lossless data compression (radar application
and optical payloads applications). Design and
development of high speed DSP processing ASICs
for implementing demod, mux and switching
functions (TLC payload applications), Design and
development of high data rate ASICs for data
formatting (according to CCSDS standards) and
encryption (Triple- DES, AES) of payload data for
transmission to ground.
10

MMIC Receivers for Advanced Radiometric Systems
Design and development of integrated MMIC
receivers in the 10GHz to 200 GHz band, for
radiometric applications. Receivers architecture
should be of Direct detection and
superheterodyne type, depending from frequency
ranges. Specific MMIC circuits should be
developed as building blocks of each receiver
(LNA, LO-DRO, downconverter and IF, detector)
and assembled within compact Multichip Modules
(MCM).
11

Development of MEMS technology
Micro technologies allow systems miniaturization
and integration of on board functions with
smaller mass and power. Development of MEMS
building blocks and electrial function will allow
to design advnced RF function for scientific and
communication payloads.
12
High Power Passive Intermodulation (PIM)
Multipaction
Design and prediction of PIM free and higher
power multipaction free RF components. Also
design tool for PIM evaluation in complex
EM environments
13

EMC/RFC/ESD Antenna test methods and facilities
Centralized consortium at European level for -
High Power Multiple frequency PIM Tests -
Multipaction Tests RF and material properties -
characterization at extreme temperature
environment - ESD and plasma charging related
tests
14

Advanced AIT Methods
Development of neural networks/genetic algo based
algorithms for implementation of automated test
execution and validation facilities for on-board
sub-systems/units
15

New harness technologies and processes
Study and development of process for utilisation
of very small sized wires (AWG 30 and 32) and of
wire with aluminium conductor
16

S/W simulation process redesign
Development of concepts and S/W tools for AIV/
AIT activity simulation and control. The scope
is to conceive and implement an export system
capable of optimising the entire AIT/AIV process.
17
summary
TLC
E. O.
D A B systems
Ka band systems
Advanced mobile
I O T A systems
Earth Ocean watch