Proceedings of the KSRS Conference (대한원격탐사학회:학술대회논문집)
- 2007.10a
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- Pages.522-525
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- 2007
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- 1226-9743(pISSN)
HIGH-SPEED SOFTWARE FRAME SYNCHRONIZER USING SSE2 TECHNOLOGY
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Koo, In-Hoi
(Ground System Development Department, Korea Aerospace Research Institute)
;
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Ahn, Sang-Il
(Ground System Development Department, Korea Aerospace Research Institute)
;
- Kim, Tae-Hoon (SOLETOP Inc. Satellite Image Dept.) ;
- Sakong, Young-Ho (SOLETOP Inc. Satellite Image Dept.)
- Published : 2007.10.31
Abstract
Frame Synchronization is applied to not only digital data transmission for data synchronization between transmitter and receiver but also data communication with satellite. When satellite image data with high resolution and mass storage is transmitted, hardware frame synchronizer for real-time processing or software frame synchronizer for post-processing is used. In case of hardware, processing with high speed is available but data loss may happen for Search of Frame Synchronization. In case of software, data loss does not happen but speed is relatively slow. In this paper, Pending Buffer concept was proposed to cope with data loss according to processing status of Frame Synchronization. Algorithm to process Frame synchronization with high speed using bit threshold search algorithm with pattern search technique and SIMD is also proposed.