• Àüü
  • ÀüÀÚ/Àü±â
  • Åë½Å
  • ÄÄÇ»ÅÍ
´Ý±â

»çÀÌÆ®¸Ê

Loading..

Please wait....

±¹³» ³í¹®Áö

Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)

Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)

Current Result Document : 8 / 21 ÀÌÀü°Ç ÀÌÀü°Ç   ´ÙÀ½°Ç ´ÙÀ½°Ç

ÇѱÛÁ¦¸ñ(Korean Title) ¼öÁß ÃÊÀ½ÆÄ µðÁöÅ» À̵¿Åë½ÅÀ» À§ÇÑ ÇÁ·ÎÅäÄÝ ¼³°è ¹× ±¸Çö¿¡ °üÇÑ ¿¬±¸
¿µ¹®Á¦¸ñ(English Title) A Study on the Protocol Design and Implementation for an Underwater Acoustic Multi-channel Digital Communication
ÀúÀÚ(Author) ¹Ú¿¬½Ä   ÀÓÀçÈ«   Yeoun-sik Park   Jae-hong Yim  
¿ø¹®¼ö·Ïó(Citation) VOL 04 NO. 01 PP. 0179 ~ 0189 (2000. 03)
Çѱ۳»¿ë
(Korean Abstract)
ÃÖ±Ù µé¾î ½ÉÇØ°³¹ß¿¡ ´ëÇÑ °ü½ÉÀÌ °íÁ¶µÊ¿¡ µû¶ó AUV ¶Ç´Â ¼öÁß ·Îº¿°ú °°Àº ¼öÁß ¹«ÀÎÀÛ¾÷¼±ÀÇ °³¹ßÀ» À§ÇÏ¿© ¸¹Àº ³ë·ÂÀ» ÇÏ¿´´Ù. º» ³í¹®Àº ÃÊÀ½ÆÄÀÇ Àü¼ÛÁö¿¬À» °í·ÁÇÏÁö ¾Ê°í ÃÖ´ë 󸮷®ÀÇ ÀÏÁ¤¼öÁØÀ» È®º¸ÇÏ°í ´ÙÁß ÃÊÀ½ÆÄ Åë½Å ä³ÎÀ» ÅëÇÏ¿© °í¼ÓÀÇ µ¥ÀÌÅÍ Àü¼ÛÀÌ °¡´ÉÇÑ »õ·Î¿î °íÈ¿À²ÀÇ À½Çâ ±â¹Ý ¼öÁß ¿µ»ó Åë½Å½Ã½ºÅÛÀ» Á¦½ÃÇÑ´Ù. Á¦½ÃµÈ ½Ã½ºÅÛÀº Áß½ÉÁÖÆļö°¡ 136khzÀÌ°í 10khzÀÇ ¹êµå Æø¿¡¼­ µ¿ÀÛÇÏ´Â À½Çâ Æ®·£½ºµà¼­, Àü´ÜÁõÆø±â, ¥ð/4 QPSK º¯º¹Á¶ ¹æ½Ä, JPEG ±â¼úÀ» »ç¿ëÇÑ ¿µ»ó ¾ÐÃà¹æ½Ä°ú ¼öÁ¤µÈ Stop & Wait ÇÁ·ÎÅäÄÝ·Î ±¸¼ºÇÑ´Ù. ½ÇÇè °á°ú´Â ¼öÁ¶ Å×½ºÆ®¿¡¼­ °íÈ¿À²ÀÇ ¼öÁß¿µ»ó Àü¼ÛÀÌ °¡´ÉÇÏ¿´°í, ¶ÇÇÑ ±× °á°ú´Â ±âÁ¸¿¡ °³¹ßµÈ ½Ã½ºÅÛ°ú Ÿ´çÇÑ Àü¼Û¼º´ÉÀ» ºñ±³ ÀÔÁõÇÏ¿´°í Çؾ翡¼­ ½Ç¿ë °¡´É¼ºÀ» ¿¬±¸ °ËÅäÇÏ¿´´Ù.
¿µ¹®³»¿ë
(English Abstract)
Recently, due to the increasing interests in deep sea development, all possible efforts to the development of underwater unmanned working vehicles such as AUV(Autonomous Underwater Vehicle) or underwater robot are exerted.
This paper proposes a new efficient acoustic-based underwater image data communication system, which ensures a certain level of maximum throughput regardless of the propagation delay of ultrasonic and allowsfast data transmission through the multiple ultrasonic communication channel.
Proposed system consists of an acoustic transducer which operates at 136kHz center frequency and it's 10kHz bandwidth, pre-amplifier, ¥ð/4 QPSK(Quadrature Phase Shift Keying) modulation/demodu-lation method, image compressing method using JPEG technique and modified Stop & Wait protocol.
The experimental result of the system make it possible to transfer the underwater image as a high throughput at the basin test. The results of test are also verified which allows to desirable transmission performance compared with the existing developed system and the possibility to put the practical use of survey and investigation in the water.
Å°¿öµå(Keyword)
ÆÄÀÏ÷ºÎ PDF ´Ù¿î·Îµå