Analysis of LAPAN-IPB image lossless compression using differential pulse code modulation and huffman coding

3rd International Symposium on LAPAN-IPB Satellite For Food Security and Environmental Monitoring 2016

地球科学;轻工业;生态环境科学

Hakim, P.R.^1 ; Permala, R.^1

Satellite Technology Centre, Indonesian Aeronautics and Space Agency (LAPAN), Rancabungur, Bogor

16310, Indonesia^1

关键词: Compression performance;    Current configuration;    Data transmission efficiency;    Image lossless compression;    Lossless compression algorithm;    Payload data handling systems;    Simulation and analysis;    Surveillance missions;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/54/1/012096/pdf
DOI  :  10.1088/1755-1315/54/1/012096

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

LAPAN-A3/IPB satellite is the latest Indonesian experimental microsatellite with remote sensing and earth surveillance missions. The satellite has three optical payloads, which are multispectral push-broom imager, digital matrix camera and video camera. To increase data transmission efficiency, the multispectral imager data can be compressed using either lossy or lossless compression method. This paper aims to analyze Differential Pulse Code Modulation (DPCM) method and Huffman coding that are used in LAPAN-IPB satellite image lossless compression. Based on several simulation and analysis that have been done, current LAPAN-IPB lossless compression algorithm has moderate performance. There are several aspects that can be improved from current configuration, which are the type of DPCM code used, the type of Huffman entropy-coding scheme, and the use of sub-image compression method. The key result of this research shows that at least two neighboring pixels should be used for DPCM calculation to increase compression performance. Meanwhile, varying Huffman tables with sub-image approach could also increase the performance if on-board computer can support for more complicated algorithm. These results can be used as references in designing Payload Data Handling System (PDHS) for an upcoming LAPAN-A4 satellite.