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document title / titre du document TRP W ORK PLAN ... - emits - ESA

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<strong>TRP</strong> Work Plan 2005-2007<br />

Description of Activities<br />

TEC-SB/7935/dc<br />

12/Feb/09<br />

2.7 - GAIA (Source: <strong>TRP</strong> 2000-2003)<br />

<strong>TRP</strong> Reference:<br />

Title:<br />

SCI-G16<br />

Optimum Compression Algorithm<br />

The objective of the activity is to identify and validate lossless or quasi lossless compression algorithms to be applied<br />

on-board and in real time to re<strong>du</strong>ce as much as possible payload data rate for scientific missions to be transmitted to ground.<br />

An efficient on-board data compression, taking advantage of the advanced processing technologies, could allow not only the<br />

transmission of higher data rate, but will also make more viable the spacecraft design, alleviating critical design constraints<br />

on-board as well on the ground, with re<strong>du</strong>ction of the overall cost. This activity should first identify, study and develop the most<br />

suitable algorithm taking into account current and future missions (e.g. GAIA, Wide Field Imager), then implement this<br />

algorithm in software as a library element for applications based on <strong>ESA</strong>'s space microprocessors.<br />

Deliverables:<br />

Optimised algorithm.<br />

Current TRL: TRL2 Target TRL: TRL4 Application Need/Date: TRL5 by 2007<br />

Application/Mission: GAIA Contract Duration: 12 months<br />

SW Clause : Open Source Code Dossier0 Ref.: T-680<br />

Consistency with Harmonisation<br />

Roadmap and Conclusions:<br />

Page 53 of 227

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