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http://dx.doi.org/10.5140/JASS.2008.25.4.459

COMS DATS Implementation and Test  

Park, Durk-Jong (Ground System Development Department, Korea Aerospace Research Institute)
Kim, Su-Jin (Ground System Development Department, Korea Aerospace Research Institute)
Ahn, Sang-Il (Ground System Development Department, Korea Aerospace Research Institute)
Publication Information
Journal of Astronomy and Space Sciences / v.25, no.4, 2008 , pp. 459-470 More about this Journal
Abstract
DATS which is one of three subsystems of IDACS is responsible to receive Sensor Data, LRIT and HRIT in L-Band and transmit LRIT and HRIT in S-Band from/to COMS satellite. This paper shows detailed test procedures used to verify the performance and functionality of DATS after its implementation was completely finished. As a part of efforts to verify key DATS performance, G/T and EIRP were measured by using solar flux density as radio source. Regarding the verification of DATS functionality, RF loop-back test was conducted to validate if there is no BER degradation excepting MODEM/BB implementation loss occurred in the integrated DATS. Integrated with 13m antenna, DATS successfully restored image from received MTSAT-1R broadcasting data, LRIT and HRIT, of which frequencies are all L-Band. S-Band transmission was also verified through test antenna placed away from 13m antenna by measuring real LRIT and HRIT spectrum in S-Band. From those test results, DATS is determined to be fully ready to communicate with COMS in L-Band and S-Band.
Keywords
COMS; DATS; G/T; EIRP;
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