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´Ù¸§ÀÌ ¾Æ´Ï¶ó Lyapunov stability °ü·Ã ºÎºÐÀ» ¹è¿ü´Âµ¥, ÀÌÇظ¦ Àß ¸øÇÏ°Ú½À´Ï´Ù.
¸¸¾à y(s) = 1/(s+1)^3 * u(s) °øÁ¤ÀÇ ¾ÈÁ¤¼ºÀ» Lyapunov ¹æ¹ýÀ¸·Î ±¸Ç϶ó°í ÇßÀ»¶§´Â
realizationÇؼ V(x)>0 , V'(x)<0 À϶§ ¾ÈÁ¤ÇÏ´Ù°í ¾Ë°í A'P+PA=-Q¸¦ ÅëÇØ P¸¦ ±¸ÇÏ°í x'Px>0À» ±¸ÇÏ°í ¹ÌºÐÇؼ °ªÀ» ±¸Çß½À´Ï´Ù.
±Ùµ¥ À§ °øÁ¤¿¡¼ PÁ¦¾î ½Ã½ºÅÛÀÌ ºÒ¾ÈÁ¤ÇØÁö´Â Á¦¾î±âÀÇ À̵æ(Kc)À» ±¸Ç϶ó°í ÇßÀ»¶§´Â ¾î¶»°Ô ÇؾßÇÏ´ÂÁö µµ¹«Áö °¨ÀÌ Àß ¾È¿É´Ï´Ù..
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