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Çѱ¹¼öÀÚ¿øÇÐȸ / v.35, no.6, 2002³â, pp.817-826
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Poincare Section°ú ½Å°æ¸Á ±â¹ýÀ» ÀÌ¿ëÇÑ ¼ö¹®ÀÚ·á ºÐ¼®
( Analysis of Hydrologic data using Poincare Section and Neural Network ) |
| ³ªÃ¢Áø;±èÇü¼ö;±èÁßÈÆ;±èÀÀ¼®; °ÇÀÏ ENG ºÎ¼³±â¼ú¿¬±¸¼Ò;¼±¹®´ëÇб³ Åä¸ñ°øÇаú;°í·Á´ëÇб³ Åä¸ñȯ°æ°øÇаú;°í·Á´ëÇб³ ºÎ¼³ ¹æÀç°úÇбâ¼ú¿¬±¸¼¾ÅÍ;
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| ¸¹Àº ÇÐÀÚµéÀº ÀÚ·áÀÇ Æ¯¼ºÀ» ºÐ¼®ÇÔÀ¸·Î½á Àå·¡¸¦ ¿¹ÃøÇϰíÀÚ ²÷ÀÓ¾øÀÌ ³ë·ÂÇÏ¿© ¿ÔÀ¸¸ç, ÀÌ´Â ¾Æ¸¶µµ È®Á¤·ÐÀû ¹æ¹ý°ú Ãß°èÇÐÀû ¹æ¹ýÀ¸·Î Å©°Ô ´ëº°ÇÒ ¼ö ÀÖÀ» °ÍÀÌ´Ù. ±×·¯³ª ¿¹ÃøÀ» Çϱâ Àü¿¡ ¸ÕÀú ÀÚ·áÀÇ Æ¯¼ºÀ» ÆÄ¾ÇÇÏ´Â °ÍÀº ¸ðÇü ±¸Ãà°ú ¿¹ÃøÀ» ½ÇÇàÇϴµ¥ ÀÖ¾î¼ ¸Å¿ì Áß¿äÇÏ´Ù ÇÒ ¼ö ÀÖ´Ù. ÀÌ·¯ÇÑ °ßÁö¿¡¼ ÃÖ±Ù È®Á¤·ÐÀû ¹æ¹ýÀ¸·Î ¾Ë·ÁÁø ºñ¼±Çü µ¿¿ªÇÐÀûÀÎ ¹æ¹ýÀÌ ¿©·¯ ºÐ¾ß¿¡¼ °ü½ÉÀÇ ´ë»óÀÌ µÇ°í ÀÖ´Ù. º» ¿¬±¸¿¡¼´Â ºñ¼±Çü µ¿¿ªÇÐ ½Ã½ºÅÛÀ» ÇØ¼®Çϱâ À§ÇÏ¿© Poincare¿¡ ÀÇÇØ Á¦¾ÈµÈ ±âÇÏÇÐÀû ¹æ¹ýÀ» ÀÌ¿ëÇÏ¿© ±âÁ¸¿¡ ¾Ë·ÁÁø ÀÚ·áµé°ú ½ÇÁ¦ ¼ö¹®ÀÚ·á¿¡ ´ëÇÑ Æ¯¼ºÀ» ºñ±³ ºÐ¼®ÇÏ¿´À¸¸ç ÀÚ·áÀÇ Æ¯¼º¿¡ µû¸¥ ¿¹Ãø°¡´É¼ºÀ» ÆÇÁ¤ÇÏ¿´´Ù. Áï, Poincare sectionÀ» ÅëÇØ Poincare mapÀ» ±¸ÃàÇÔÀ¸·Î½á ÀÚ·áÀÇ Æ¯¼ºÀ» ÆÄ¾ÇÇÏ¿© ÀÚ·áÀÇ ¼±Çü, ºñ¼±Çü¼º »Ó¸¸ ¾Æ´Ï¶ó ÀÚ·á°¡ ¾î¶² ¸ðÇü¿¡ ÀûÇÕÇÑÁö¸¦ ÆÇ´ÜÇÒ ¼ö ÀÖ¾ú´Ù. |
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| Many researchers have been tried to forecast the future as analyzing data characteristics and the forecasting methodology may be divided into two cases of deterministic and stochastic techniques. However, the understanding data characteristics may be very important for model construction and forecasting. In the sense of this view, recently, the deterministic method known as nonlinear dynamics has been studied in many fields. This study uses the geometrical methodology suggested by Poincare for analyzing nonlinear dynamic systems and we apply the methodology to understand the characteristics of known systems and hydrologic data, and determines the possibility of forecasting according to the data characteristics. Say, we try to understand the data characteristics as constructing Poincare map by using Poincare section and could conjecture that the data sets are linear or nonlinear and an appropriate model. |
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| ºñ¼±Çü µ¿¿ªÇÐ;Nonlinear dynamics;Poincare section;Poincare map;Poincare section;Poincare map; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.35, no.6, 2002³â, pp.817-826
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200211921477287)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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