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ÇѱÛÇ¥Áظí ÁÖÆļö °øÀ¯¸¦ À§ÇÑ Ku ´ë¿ª VSAT ¾ÈÅ׳ªÀÇ ±â¼úÀû Ư¼º
¿µ¹®Ç¥Áظí Technical Charateristics of VSAT for the Frequency Sharing in Ku-band
Çѱ۳»¿ë¿ä¾à ÁÖ¿ä ³»¿ëÀ¸·Î¼­ ù ¹ø°·Î VSAT Áö±¸±¹ÀÇ ¿î¿ëÀ¸·ÎºÎÅÍ Å¸ Áö»ó¸Á ¹× À§¼ºÀüÆľ÷¹«¸¦ º¸È£Çϱâ À§ÇÏ¿© VSAT¿¡¼­ ¹æ»çµÇ´Â ½ºÇ»¸®¾î½º ½ÅÈ£ÀÇ ÃÖ´ë ¼¼±â¸¦ ±ÔÁ¤ÇÏ¿´À¸¸ç, µÎ ¹ø°·Î °íÁ¤À§¼º¾÷¹«¿¡¼­ ±³Â÷ÆíÆÄÀÇ ½ÅÈ£·ÎºÎÅÍ Èñ¸Á VSAT Áö±¸±¹ÀÇ ½ÅÈ£¸¦ º¸È£Çϱâ À§ÇÏ¿© VSAT ¾ÈÅ׳ªÀÇ ±³Â÷ÆíÆÄ ºÐ¸®µµ¿¡ ´ëÇÑ ±âÁØ°ªÀ» ±ÔÁ¤ÇÏ°í, ¼¼ ¹ø°·Î °£¼·½ÅÈ£ÀÇ Àü·ÂÀ» Á¦¾îÇÏ¿© Ÿ À§¼º¸ÁÀÇ °£¼·À¸·ÎºÎÅÍ Èñ¸Á Á¤Áö±Ëµµ À§¼º¸ÁÀ» º¸È£ÇÏ°íÀÚ Áö±¸±¹°ú À§¼º°£ ÁÖÃà(on-axis)¿¡¼­ ¹þ¾î³­ Ãà¿Ü(off-axis) °¢µµº° ÃÖ´ë e.i.r.p. ¹Ðµµ¸¦ Á¤ÀÇÇÏ¿© ÀáÀçÀû À¯ÇØ°£¼·À¸·ÎºÎÅÍ Èñ¸Á À§¼º¸ÁÀ» º¸È£ÇÏ´Â ÇÑÆí, À¯ÇÑ ÀÚ¿øÀÎ Á¤Áö±Ëµµ/ÁÖÆļö ÀÚ¿øÀ» º¸´Ù È¿°úÀûÀ¸·Î »ç¿ëÇϵµ·Ï ±¹Á¦ Ç¥ÁØ°ú »óÈ£ ȣȯ¼ºÀ» º¸ÀåÇÑ´Ù.
¿µ¹®³»¿ë¿ä¾à To protect other terrestrial and satellite radio services from the operation of VSAT earth station and to protect the transmissions of satellite services on the same satellite as the VSAT services, this standard provides the maximum permissible level of spurious emissions from VSATs.
To protect the wanted VSAT earth station signals from signals on the orthogonal polarization in the FSS, this standard provides the reference for the cross-polarizations isolation from VSATs.
Taking into consideration that geostationary satellite networks in the FSS operate in the same frequency bands, this standard provides the maximum permissible level of off-axis e.i.r.p. density from VSATs to protect a geostationary satellite network in the FSS from interference by other satellite network and also to facilitate the efficient usage of the geostationary orbit and frequency resources.
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