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Ç¥ÁعøÈ£ TTAK.KO-06.0468 ±¸Ç¥ÁعøÈ£
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¿µ¹®Ç¥Áظí Local Specific Rain Attenuation Model
Çѱ۳»¿ë¿ä¾à ÀÌ Ç¥ÁØÀº ±¹³»ÀÇ °­¿ì °­µµ¿¡ µû¸¥ ºø¹æ¿ï Å©±â ºÐÆ÷¿¡ ±Ù°ÅÇÑ, ±¹³» ȯ°æ¿¡ ÀûÇÕÇÑ °­¿ì°¨¼è °è¼ö ¸ðµ¨¿¡ ´ëÇÑ °ÍÀÌ´Ù. °­¿ì°¨¼è´Â ±âº»ÀûÀ¸·Î ºø¹æ¿ïÀÇ »ê¶õ ¹× Èí¼ö¿¡ ±âÀÎÇϴµ¥, ºø¹æ¿ïÀÇ Å©±â ºÐÆ÷´Â °­¿ì °­µµ¿¡ µû¶ó ´Ù¸£¸ç ¶ÇÇÑ µ¿ÀÏÇÑ °­¿ì °­µµÀ̶ó ÇÒÁö¶óµµ ºø¹æ¿ï Å©±â ºÐÆ÷´Â Áö¿ªÀû Ư¼º°ú °­¿ìȯ°æ¿¡ µû¶ó Â÷ÀÌ°¡ ÀÖ´Ù. ÀÌ·¯ÇÑ ºø¹æ¿ï Å©±â ºÐÆ÷ÀÇ Â÷À̴ ƯÈ÷ ³ôÀº ÁÖÆļö ¿µ¿ª¿¡¼­ »ó´çÈ÷ Å« °­¿ì°¨¼è ¿¹Ãø ¿ÀÂ÷¸¦ À¯¹ßÇÒ ¼ö ÀÖ´Ù. º» Ç¥ÁØ¿¡¼­´Â ±¹³» ȯ°æ¿¡¼­ÀÇ ºø¹æ¿ï Å©±â ºÐÆ÷¸¦ ºÐ¼®ÇÏ¿© °­¿ì°¨¼è °è¼ö ¸ðµ¨À» µµÃâÇÏ¿´´Ù.
¿µ¹®³»¿ë¿ä¾à The standard deals with a local specific rain attenuation model suitable for domestic environment, which is based on the domestic rain drop-size distribution. Rain attenuation is basically caused by scattering and absorption of rain drops. The rain drop-size distribution is dependent on the rain rate. Even for the same rain rate, the drop size distribution is quite different, depending on the regional characteristics and rain environment, which leads to quite large errors in rain-attenuation prediction, especially for milimeter-wave frequency band. In the standard, the local specific rain attenuation model was derived by analyzing the rain drop-size distribution in domestic environment.
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