ISSN 2070-7401 (Print), ISSN 2411-0280 (Online)
Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa


Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2009. Issue.6. Vol.1. P. 288-295

Development of image transfer system from nano-satellites for ERS purposes

К.В. Селиванов 
Московский технический университет связи и информатики, кафедра телевидения, 111024, Москва, Авиамоторная ул., 8а
Known project of technological nano-sattelite (TNS-1) for ERS purposes assume that for image
transfer from satellite the special radio-channel at 1.7 GHz with speed of 665 kb/s is needed. It allows to
provide a steady flow image information income of middle space resolution (150-200 m) to big number
of existing meteorology stations that work with NOAA standard. That makes available wide
accessibility, at a constant and unrequest mode of ERS information for interested users. The information
source in the satellite is digital camera, that works in RGB standard with 8 compression rate in JPEG
TNS-1, like early lunched nano-sattelite TNS-0, must have a management system based on
telecommunication satellite system GLOBALSTAR. Maximum speed in the management channel is 9.6
kb/s at 1st generation GLOBALSTAR satellites and 100-200 kb/s at 2nd in transfer mode which are going
to be installed soon.
Considering the ways to raise the compression rates for images, that would be usable for ERS
purposes, which combined with optimization space resolution could provide abilities to transfer images
from nano-sattelite from GLOBALSTAR channel or even by internet, that greatly improve capability of
their use and effectively reduce and improve nano-sattelite structure.
Compression effectiveness suggested to be improved by cost of adaptive tuning algorithm by which
the compression method works, in dependence of integral rating of image structure specification in local
fields. That ability gives not only upgrade of compression rate, but even raise the effectiveness of preselective
processing before compression process realization and accuracy of processing.
Keywords: nano-satellites, television, colorimetry, earth remote sensing (ERS), RGB
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