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Development of NOAA satellites ground station: A redundancy system
Author(s)
Date Issued
December 1, 2012
Type
Conference Paper
Abstract
This paper aims to introduce a redundant system for NOAA in the Automatic Picture Transmission (APT) mode at the Thailand Ground Receiving Station. The Geo-Informatics and Space Technology Development Agency (GISTDA) has the capability to downlink NOAA satellites data in High Rate Picture Transmission (HRPT) mode which operates in L-band (1670-1710 MHz). However, if this system fails GISTDA is not able to receive any NOAA data. A redundant system is now considered to prevent or reduce the risk of service outage in case of a downlink failure. The proposed redundant system consists of a low cost antenna, a receiver in Automatic Picture Transmission (APT) mode, recording system, decoder software, database system that can be accessed via the internet. The Antenna and receiver in APT mode are operated in the VHF frequency range (137-138 MHz). Therefore, the cost is lower than the receiving system which operates in HRPT mode. The proposed system also includes a recording system and data processing unit in order to process the satellite images by using the freeware decoder software. All archive images can be viewed via catalogue browsing system and stored in a database system on a server where users can have access to these images via the internet. In addition, such a system is very useful as a backup system for downlink NOAA data from the satellites.
Citation
33rd Asian Conference on Remote Sensing 2012 Acrs 2012, 3, 2328-2334, 2012