REAL-TIME DATA COMPRESSOR FOR EOS-CLASS MISSIONS.

Jun ji Lee*, Wai-Chi  Fang, Robert Rice

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

3 Scopus citations

Abstract

Methods are presented to reduce both the onboard storage volume and transmission-rate requirement for NASA's two high-rate instruments the HIRIS high-resolution imaging spectrometer and the synthetic-Aperture radar (SAR) to be flown as research facility instruments on the NASA earth observing system (EOS) polar-orbiting platforms. A distortion-free coding scheme capable of providing a factor of three-to-one in data compression is described. The data compression scheme is a variant of the block adaptive rate controlled (BARC) method. Special emphasis is placed on the changes made to accommodate the VLSI design approach. A conceptual design utilizing the VLSI parallel/pipelined architecture capable of meeting real-time processing requirement is provided. The architecture consists of a parallel array of VLSI compressor modules with each module built on a single customized VLSI chip. It is capable of achieving throughput rate at one gigabit per second.

Original languageEnglish
Pages (from-to)155-160
Number of pages6
JournalEASCON Record: IEEE Electronics and Aerospace Systems Convention
StatePublished - 1 Dec 1987
EventEASCON Rec 20th, Annu Electron and Aerosp Syst Conf - Technol for Space Leadership Conf Proc - Washington, DC, USA
Duration: 14 Oct 198716 Oct 1987

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