Proceedings of the KSRS Conference (대한원격탐사학회:학술대회논문집)

  • Volume 2
  • /
  • Pages.784-787
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  • 2006
  • /
  • 1226-9743(pISSN)
Korean Society of Remote Sensing (대한원격탐사학회)
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ANALYSIS ON THE INFLUENCE OF XPD IN DUAL-POLARIZED TRANSMISSION

  • Park, Durk-Jong (Satellite Mission Operation Department, Korea Aerospace Research Institute) ;
  • Ahn, Sang-Il (Satellite Mission Operation Department, Korea Aerospace Research Institute)
  • Published : 2006.11.02
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Abstract

Dual-polarized transmission is one of the effective methods to transmit such a high speed data thanks to two independent channel leads to the orthogonal feature between RHCP (Right-Hand Circular Polarization) and LHCP (Left-Hand Circular Polarization). However, in practical case, the transmitted signal by RHCP polarized antenna in satellite can be occurred at the output port of LHCP polarized antenna in ground station, vice versa. XPD (Cross-Polarization Discrimination) is the ratio of the signal level at the output of a receiving antenna that is nominally co-polarized to the transmitting antenna to the output of a receiving antenna of the same gain but nominally orthogonally polarized to the transmitting antenna. In this paper, the detailed estimation of XPD within the interface between satellite and ground station is written and the influence of XPD to link performance is also described.

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