Title :
The Implement of Onboard Compression Platform Based on DSP and FPGA
Author :
Jia, Zhi-hong ; Geng, Li-hong ; Sun, Cai-hong ; Jiang, Zhao
Abstract :
With the high resolution instruments, the data collected by the space solar telescope (SST) satellite will be a large volume. Meanwhile, due to the limited storage and down-link capacity, onboard data compression is needed. In this paper, a real time image compression scheme is proposed. According to the requirement of SST and the space environment restriction condition, we adopt the compression algorithm based on Daub 4 wavelet transform with lifting steps, and designed the data compression (DCU) platform with DSP and FPGA. The interfaces and HW/SW designs are given in detail. The system tests show that the performance meets the requirement of SST
Keywords :
artificial satellites; astronomical image processing; astronomical telescopes; data compression; digital signal processing chips; field programmable gate arrays; image coding; software engineering; wavelet transforms; DSP; Daub 4 wavelet transform; FPGA; SST satellite; down-link capacity; onboard data compression platform; real time image compression scheme; space solar telescope satellite; Algorithm design and analysis; Compression algorithms; Data compression; Digital signal processing; Field programmable gate arrays; Image coding; Instruments; Satellites; Telescopes; Wavelet transforms;
Conference_Titel :
Signal Processing, 2006 8th International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-9736-3
Electronic_ISBN :
0-7803-9736-3
DOI :
10.1109/ICOSP.2006.345497
