Field-programmable gate array implementation of Consultative Committee for Space Data Systems image data compression

Abstract

Chung-Shan Institute of Science and Technology, No. 481, Sec. Chia An, Zhongzheng Road,Longtan Shiang, Taoyuan County 325, TaiwanAbstract. High-performance computing (HPC) is necessary for remote-sensingimagecompres-sion to achievereal-time output. There are one panchromatic and four multispectrum bands witha total 970-Mbps data rate in the Formosat-5 remote-sensing instrument. Three Xilinx Virtex 5field-programmable gate array parts with external memory are used to perform real-time imagedata compression based on Consultative Committee for Space Data Systems (CCSDS) 122.0-B-1 [“Image data compression,” Recommendation for Space Data System Standards, CCSDS122.0-B-1, CCSDS, Washington, DC (2005)]. Parallel and concurrent handling methodologiesare used to achieveHPC in the image compressionprocesswith fewer multipliers,smaller mem-ory buffers, and shorter process time.