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CCSDS Lossless Data Compression Algorithm in FPGA for Space Applications

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Author(s): Rakhee Sasi,

Journal: International Journal of Engineering and Advanced Technology
ISSN 2249-8958

Volume: 2;
Issue: 6;
Start page: 330;
Date: 2013;
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Keywords: CCSDS | e_Rice algorithm | FPGA | Huffman algorithm | Loseless Data Compression.

ABSTRACT
Lossless data compression has been suggested for many space science exploration mission applications either to increase the science return or to reduce the requirement for on-board memory, station contact time, and data archival volume. This paper presents a study and implementation of a lossless data compression system, based on the extended_Rice or e_Rice algorithm, as recommended by the Consultative Committee for Space Data Systems (CCSDS), which is implemented on FPGAs (Field Programmable Gate Arrays). A major feature of the e_rice algorithm is that it requires no look- up tables. A simple modification is suggested for e_Rice data compression system which improves its compression performance and thus mainly focus on the reduction of memory and data archival volume. Also the performance parameters of modified e_Rice is compared with Huffman algorithm. The FPGA implementation consists of (a)the received flight mission data decompressed and retrieve the original samples, (b)then original samples are encoded and compared with the received data.
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