F r a u n h o F e r I n S T I T u T e F o r

I n T e G r aT e d C I r C u I T S I I S

WWW.IIS.FRAUNHOFER.DE/FOBP FOBP FRAUNHOFER ON-BOARD PROcESSOR

SmallGEO platform developed by OHB System

Image: OHB System

a p p l I C a T I o n

The Fraunhofer On-Board Processor (FOBP) was conceived for

several applications connected to the Heinrich Hertz Satellite

system, which is designed to operate in a geostationary earth

orbit for 15 years.

The FOBP supports a range of applications including:

– Satellite communication with a return channel for nomadic

and mobile users

– Broadband communication up to 450 MHz

– Flexible adaptation to existing systems due to its scalable

bandwidth, which ranges from broadband to narrowband,

such as for sensor data (power meters)

– On-board processing for applications such as adaptive coding

and modulation (ACM)

– On-board switching (via IP for instance)

– Digital measurement of solar radiation and total ionizing dose

(TID) direct in the FOBP

–DynamicadaptationoftheFPGAfirmwaretothecurrent

solar radiation condition

– Adaptable to future transmission standards through recon-

figurationofthepayload

o u r S e r v I C e S

–Verificationplatformwithalivesatellitelinkfortesting

communication applications

– Integration of your on-board processing algorithm into

the FOBP

– Support for satellite-based communication systems

– Implementation of RF and signal processing components in

accordance with your requirements

– Professional consulting and individual requirements analysis

usingestablishedscientificmethods

– Technical and business feasibility studies

Fraunhofer Institute for Integrated Circuits IIS

DirectorProf. Dr.-Ing. Albert Heuberger

Am Wolfsmantel 3391058 Erlangen, Germany

www.iis.fraunhofer.de

ContactRainer WanschPhone: +49 9131 776-3120E-mail: rainer.wansch@iis.fraunhofer.de

The German Space Agency (DLR) is overseeing the development

and operation of the Heinrich Hertz Satellite mission, including

the testing of innovative communication technologies.

Fraunhofer IIS is participating in the mission by developing an

on-board processor (FOBP) for the satellite system. In contrast

to conventional transponders, this FOBP is regenerative and

reconfigurable,twofeaturesthatmakeitpossibletoresearchand

test new transmission methods.

Fraunhofer IIS is responsible for the following parts of

the mission:

– Development of new protocols, e. g. for direct satellite

communication

– Testing of new modulation and coding schemes

– In-orbitverificationofradiationsensors:

– Absorbed radiation dose (UV EPROM)

– Solar particle events (SRAM, BRAM in FPGA)

– Research into adaptive single event upset (SEU) mitigation

methodsforconfiguringtheoptimalredundancyinanFPGA

– In-orbitverificationoftheHallinOne®technologyforcontact-

less measurement of the FPGA power consumption

– Hardware architecture based on two state-of-the-art low-

radiationFPGASthatcanbereconfiguredfromtheearth

stationtoguaranteemaximumflexibilityforawidevarietyof

applications:

– Radiation-hard, high-speed ADCs and DACs that enable

direct sampling of the L-band intermediate frequency

– Availability of higher bandwidth - up to 450 MHz - enables

high data rates for broadband communication with

stationary terminals and mobile devices

T e C h n I C a l F e a T u r e Sa T a G l a n C e

© Fraunhofer IIS

confidential 1

FOBP on Heinrich Hertz Fraunhofer Payload

Uplink Ka-Band 30 GHz

DownCon 30 20 GHz

TWTA

Downlink K-Band 20 GHz

Transparent Bypass (Bent-pipe)

High Voltage - High Power Commands (HV-HPCs)

DownCon 20 GHz

L-Band

DownCon 20 GHz

L-Band

UpCon L-Band 20 GHz

UpCon L-Band 20 GHz

RF Filtering

Direct Sampling Digital Signal

Processing

2 FPGAs incl. SoC

Memories, Sensors*,

CLKs

Fraunhofer Payload *) incl. Radiation Sensors

Bandwidth (BW): 450 MHz

BW: 36 MHz

RF Filtering

Direct Sampling

Direct Conversion

RF Filtering

Direct Conversion

RF Filtering

Bi-level Switch Monitors (BSMs)

Power HV-HPCs

BSMs

Power

FOBP FRAUNHOFER ON-BOARD PROcESSOR

Clock Distribution

AnalogFront-EndReceiver

AnalogFront-End

Transmitter

OCXO

FPGAV5-QV

SRAM

ADC DAC

common IF1530 MHz

-70...-20 dBm

BW450 MHz

common IF1530 MHz

-22…-18 dBm

SDRAM

MRAM

SRAM

UVEPROM

FPGAV5-QV

SRAM

ADC DAC

SDRAM

MRAM

SRAM

UVEPROM

Power Supply, HV-HPC and BSM

ControllerSyn

BW36 MHz

BW36 MHz

BW450 MHz

HV-HPCs

50 V

BSMs

I1

I2

O1

O2

Overall view of the FOBP

Footprint of the Heinrich Hertz Satellite in Germany

Modular view of the FOBP

1 FOBP box

2 FOBP incl. single modules

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©Florian Werzinski

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