Airbus Defence and Space

EARTH OBSERVATION, NAVIGATION AND SCIENCE

Mass memory for very high speed SAR applications

This type of mass memory is currently developed by Airbus Defence and Space for the TERRASAR-X program. The mass memory is tailored for High-Resolution SAR instruments .with very high data rates ( 2 to 6 Gbps ) and large capacities ( 512 to 768 Gbit EoL)

 

Features / technical details

The typical performance parameters of the TerraSARX mass memory class are:

• Medium to large EoL data storage capacity from 512 Gbit up to several Tbit.

• Very high input data rate of up to 6 Gbps. Data are received via multiple and scalable data input channels at a rate of 1 Gbps per channel. Input interface based on HDMP 1032 A /1034 A Giga Link receiver/ transmitter

• Reliability : 0.98 ( after 5 years mission time )

• Functions : File Management , Data Compression , Formatting , Encryption , Scrambling

• Downlink data are encrypted ( 3DES ; AES ) and formatted acc. to CCSDS Standard

• High speed telemetry downlink Interface based on LVDS data rate of 300 (600 ) Mbps

• Power consumption: 60 to max. 120 W

The architecture of the mass memory is modular structured and subdivided in:

• data input section ( I-UIC )

• data routing network section ,( SWITCHING MATRIX "SWMX " )

• data storage section ( UFM1 to UFM6 ) ,

• data pre-processing/compression section ( optional )

• data output and downlink transmission section (O-UIC ) .

Applications

High resolution SAR Instrument ( TerraSAR X / TANDEMX ) and Optical Instruments

Reference customers

DLR and Airbus Defence and Space itself.