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| Telecommunications Á¤º¸ Åë½ÅTelecommunication is the extension of communication over a distance. Ä¿¹Â´ÏÄÉÀÌ ¼ÇÀ» ÅëÇØ Á¤º¸ Åë½ÅÀº °Å¸®ÀÇ ¿¬ÀåÇÕ´Ï´Ù. In practice it also recognizes that something may be lost in the process; hence the term 'telecommunication' covers all forms of distance and/or conversion of the original communications, including radio, telegraphy, television, telephony, data communication and computer networking. ½ÇÁ¦·Îµµ´Â °ÍÀ» ÀνÄÇÏ´Â °úÁ¤¿¡¼ ¼Õ½ÇµÉ ¼öÀÖ½À´Ï´Ù; µû¶ó¼ ¿ë¾î 'Á¤º¸ Åë½Å'¿¡ ¼ÓÇÑ ¸ðµç ÇüÅÂÀÇ °Å¸® ¹× / ¶Ç´Â ÀüȯÀ» ±âÁ¸ Ä¿¹Â´ÏÄÉÀÌ ¼ÇÀ» Æ÷ÇÔÇÑ ¶óµð¿À, Àü½Å, ÅÚ·¹ºñÀü, ÀüÈ Åë½Å, µ¥ÀÌÅÍ Åë½Å ¹× ÄÄÇ»ÅÍ ³×Æ®¿öÅ·ÇÕ´Ï´Ù.
The elements of a telecommunication system are a transmitter, a medium (line) and possibly a channel imposed upon the medium (see baseband and broadband as well as multiplexing), and a receiver. Æ®·£½º ¹ÌÅÍ´Â Á¤º¸ Åë½Å ½Ã½ºÅÛÀÇ ¿ä¼Ò´Â, ¸Åü (Çà)¿Í ¾Æ¸¶ ä³ÎÀ» ºÎ°úÇß´Ù ¸Åü (±âÀú ´ë¿ª ¹× ±¤´ë¿ª»Ó¸¸ ¾Æ´Ï¶ó ¸ÖƼÇ÷º½Ì), ±×¸®°í ¼ö½Å±âÇÕ´Ï´Ù. The transmitter is a device that transforms or encodes the message into a physical phenomenon; the signal . Æ®·£½º ¹ÌÅÍ´Â ÀåÄ¡°¡ ½ÅüÀûÀÎ Çö»óÀ» º¯È¯Çϰųª ¸Þ½ÃÁö¸¦ ÀÎÄÚµùÇÕ´Ï´Ù;ÀÇ ½ÅÈ£ÇÕ´Ï´Ù. The transmission medium, by its physical nature, is likely to modify or degrade the signal on its path from the transmitter to the receiver. ¸¦ Àü¼Û ¸Åü·ÎÀÇ ¹°¸®Àû ÀÚ¿¬, ½ÅÈ£¸¦ ÀúÇϽÃų °ÍÀ¸·Î º¸ÀδÙÀÇ °æ·Î¸¦ ¼öÁ¤Çϰųª ¼Û½Å±â¸¦ ¼ö½Å±âÇÕ´Ï´Ù. The receiver has a decoding mechanism capable of recovering the message within certain limits of signal degradation. ¸®½Ã¹öÀÇ µðÄÚµù ¸ÞÄ¿´ÏÁòÀº ƯÁ¤ÇÑ ½Ã°£ÀÌ ¸Þ½ÃÁöÀÇ ÇÑ°è ´É·ÂÀ» ȸº¹ ½ÅÈ£¸¦ ºÐÇØÇÕ´Ï´Ù. In some cases, the final "receiver" is the human eye and/or ear (or in some extreme cases other sense organs) and the recovery of the message is done by the brain (see psychoacoustics.) °æ¿ì¿¡ µû¶ó¼´Â, ÃÖÁ¾ "¼ö½Å±â"´Â Àΰ£ÀÇ ´« ±×¸®°í / ¶Ç´Â ±Í (¶Ç´Â ÀϺΠ±Ø´ÜÀûÀÎ °æ¿ì ´Ù¸¥ °¨°¢ ±â°ü)¿Í ȸº¹ÀÇ ¸Þ½ÃÁö°¡¿¡ ÀÇÇØ ¼öÇà ³ú (psychoacousticsÇÕ´Ï´Ù.) Telecommunication can be point-to-point, point-to-multipoint or broadcasting, which is a particular form of point-to-multipoint that goes only from the transmitter to the receivers. Á¤º¸ Åë½ÅÀº Æ÷ÀÎÆ® -ÀÌ - Æ÷ÀÎÆ®, Æ÷ÀÎÆ® -ÀÌ - ´ÙÁöÁ¡ ¶Ç´Â ¹æ¼Û, À̰ÍÀº ƯÁ¤ ÇüÅÂÀÇ Æ÷ÀÎÆ® -ÀÌ - ´ÙÁöÁ¡ Æ®·£½º ¹ÌÅ͸¦ ÅëÇØ¼¸¸ ÀϾ´Â ¼ö½Å±âÇÕ´Ï´Ù. One of the roles of the telecommunications engineer is to analyse the physical properties of the line or tranmission medium, and the statistical properties of the message in order to design the most effective encoding and decoding mechanisms. Åë½Å ±â¼úÀÚÀÇ ¿ªÇÒ Áß ÇϳªÀÇ ¹°¸®Àû Ư¼ºÀ» ºÐ¼®Çϴ°¡ÀÇ ¶óÀÎÀ̳ª Àü¼Û ¸Åü, ±×¸®°í ¸Þ½ÃÁöÀÇ µî·Ï Á¤º¸ÀÇ Åë°è¸¦ ¼³°èÇϱâ À§ÇØ °¡Àå È¿°úÀûÀÎ ÀÎÄÚµù ¹× µðÄÚµù ¸ÞÄ¿´ÏÁòÀ»ÇÕ´Ï´Ù. When systems are designed to communicate through human sense organs (mainly vision and hearing), physiological and psychological characteristics of human perception will be taken into account. ÀÌ ½Ã½ºÅÛÀº Àΰ£ÀÇ °¨°¢ ±â°üÀ» ÅëÇØ Åë½ÅÇϵµ·Ï ¼³°èµÇ¾ú½À´Ï´Ù (ÁÖ·Î ½Ã°¢°ú û°¢), »ý¸® ¹× ½É¸®ÀûÀÎ Àΰ£ÀÇ Áö°¢ÀÇ Æ¯¼ºÀ» °í·Áµµ ÃëÇÏÁö ¾ÊÀ» °ÍÀÔ´Ï´Ù. This has important economic implications and engineers will research what defects may be tolerated in the signal yet not affect the viewing or hearing experience too badly. À̰ÍÀº Áß¿äÇÑ °æÁ¦Àû ÀÇ¹Ì¿Í ¿£Áö´Ï¾î°¡ Á¶»ç¿¡ Çã¿ëµÉ ¼öÀÖ½À´Ï´Ù ½ÅÈ£¸¦ ¾ÆÁ÷ ¾î¶² °áÇÔ¿¡ ¿µÇâÀ» ¹ÌÄ¡Áö ¾Ê½À´Ï´Ù û¹®È¸¸¦ º¸°Å³ª °æÇèÀ» ³Ê¹« ½ÉÇϰÔÇÕ´Ï´Ù. This article is licensed under the GNU Free Documentation License . ÀÌ ¹®¼´Â ¶óÀ̼¾½º ¾Æ·¡¿¡ ¸¶Áö¸·À¸·Î ¹Ù²î¾ú½À´Ï´Ù. It uses material from the Wikipedia article "telecommunication" . ¼ÒÀ縦 »ç¿ë À§Å°¹é°ú ±â»ç "Åë½Å"ÇÕ´Ï´Ù. The Learn More Series from BBI ¿¡ ´ëÇÑ ÀÚ¼¼ÇÑ ½Ã¸®Áî¿¡¼ bbi
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