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Radial Basis Functions and Kriging Metamodels for Aerodynamic Optimization

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(1)Radial Basis Functions and Kriging Metamodels for Aerodynamic Optimization Praveen Chandrashekarappa, Regis Duvigneau. To cite this version: Praveen Chandrashekarappa, Regis Duvigneau. Radial Basis Functions and Kriging Metamodels for Aerodynamic Optimization. [Research Report] RR-6151, INRIA. 2007, pp.40. �inria-00137602v2�. HAL Id: inria-00137602 https://hal.inria.fr/inria-00137602v2 Submitted on 22 Mar 2007. HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers.. L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignement et de recherche français ou étrangers, des laboratoires publics ou privés..

(2) INSTITUT NATIONAL DE RECHERCHE EN INFORMATIQUE ET EN AUTOMATIQUE. Radial Basis Functions and Kriging Metamodels for Aerodynamic Optimization Praveen. C — R. Duvigneau. N° 6151 March 2007. ISSN 0249-6399. apport de recherche. ISRN INRIA/RR--6151--FR+ENG. Thème NUM.

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(14)  d(aœSPW`cW V'n†|PWš`ÁUvªSUjlWicvxic~S‹_0n«.zibj|U`§j`$fU`bW| vxdU|ˆacSUWª`bfUicibnz‹vacWªVhn<|UWš jl`JobfU`{a8aœSUWC~nz`{aœšl_HW¨vxšlfŽvacjnzdaœn<nzš ŸPfPa5icfPd©nzd©v ~n‹vic`cW zibj|¯­  vxicjvxŸUšlW¿Ž|UWšj®a _ˆV'n†|PWš`  d©aœSPW`cWËV'n†|PWš`Áv(SUjWiœvxib~S‹_¤nx«wUS‹_<`cj~vxšÄV'n†|<ž Wšl`ZvxibWCfU`bW|¯Á>«Nnzi°W´ÌPvxVhwPšWªt‚fUšlWi°Wk?fŽvacjnzdU`  `bfUicibnz‹vacWCV'n†|UWš )vxdU|¤uerZX8^ Wk?fŽvacjnzdP` NWÌPvx~a°V'n<|UWš ­JtĨzWdH¦}SUWd¤vËSUjzS(¿Ž|PWšj®a _0V'n†|PWš¯šlj£xW u}r8XZ^jl` fU`cW|¯Á‚nzdUWh~–vxdÉfU`cW(v¦$vxšlšG«NfPdU~acjnzdÉvxwUwUibn:̆jlVvacjnzdÀvx`CvH`cfPicicnx‹vaœWhVhn<|UWš vxdU|vaœfUibŸUfUšWdU~W V'n†|PWšvxwPwUšjlW|(fUwPacn'acnaœSUW5¦§vxššv`}acSUW WÌPvx~a°V'n<|UWšé­.  d¬acSUj`5ibWwynziba5¦WË~nzdP`cj|PWi |Žvaœvpž ¿UabaœjldU0V'n†|UWš`ÁwŽvxibacj~fUš›vxibšl_iœv|Uj›vxš ŸŽvx`bj`8«NfUdU~´ž aœjnxdU`$vxdP|(‹vxfU`b`cj›vd(iœvxdU|PnzVÍwPicn<~W`b`)Vhn<|UWš`ÁPvxš`bnª£?dUn:¦}dvx`$£?icjlzjdUP­‚ŧnxacS0aœSUW`cW VhWaœSUn<|U`ZSUv:¨xWŸ>WWd¤«NnzfPdU|ˆaœnŸ>WªW OW~acjl¨zWCjd¤jld?acWibw>nzšvaœjlnzdnx«JSUjlzSˆ|UjlVhWdU`cjlnzdŽvxš |Žvave¦}jlaœSC`cVhvxšš<d?fUVªŸyWiÄnx«Q|Uvav8wynzjd‹ac`Ävx`Ä~nzV'wŽvxicW|Caœn5wynzš®_†dPnzVhjvxš‹ŸŽvx`bW|ËV'WaœS<ž n†|U`­ N. M. J. K. M. J. J. ')(. M.  : 7B @ 9=,/.87!2/9=:H@T9 ,/B C. j®¨zWdv`cWaZn« N |Ujl`bacjdU~a}w>nzjld‹aœ` N. QP. ÷.

(15) À¹¸¼·x»µ <¹ ± ¬·<¹³œµ y·x» ªµ y¸ ô» :·x¸ ¼µ X°vxVhW m.vxicvxV'WaœWic` ^†Vhn<nxacSUdUW`b` φ(r) vxfU`b`cj›vd exp (−r /a ) − C.  d‹¨zWic`cWVªfUš®aœjk?fŽv|Uicjl~ (r + a ) s<0 C ^<nzŸ>nxšW¨`cwUšljdUW r K (r) s>0 C R vxŸUšlWƒ JY°dU~nzdU|Uj®aœjlnzdŽvxšlšl_'w>nx`cjlacjl¨xW5|UW¿ŽdPjlaœW5«NfUdP~aœjlnzdU`   .  .

(16)   

(17) .  . N. 2. 2. s. 2. ∞. 2 s/2. ∞. „. bsc. s. M. XN = {x1 , x2 , . . . , xN } ⊂ Rd. vxdU|(aœSUW5¨vxšlfUW`}nx«%aœSUW5«NfUdP~aœjlnzdva)aœSPW`cWšn<~–vpaœjnxdU`. FN = [f1 , f2 , . . . , fN ]>. ¦§W SŽv–¨zW aœnËjldP«NWi$acSUW5¨xvšfUW5nx«%aœSPW «NfPdU~acjnzd f vpaev'dUW¦ wynzjd‹a x ­ (  H  * C & '(#) u°vx|Pj›vxšÄŸUvx`cjl`«NfUdP~aœjlnzdU` PÁJƒ JSŽv–¨zWhŸ>WWdÉ«NnxfUdU|ÀacnHŸyW˨zWi{_Àvx~~fUiœvacW'«Nnxijld?acWiºž w>nzšvaœjlnzdjd¤SUjlzS¤|UjlVhWdU`cjlnzdU`ZvxdU|¬vxibWCj|PW–vxš%«NnziZjld?acWibw>nzšvaœjlnzdnx«J`c~vacacWicW|¬|Žvav†­ fUWZacnªaœSUWji§`bw>W~aciœvxš>~nzd‹¨zWiczWdU~W wUibnzwyWiba _vxdU|(V'W`bSUšW`c`$dUvaœfUibWxÁPacSUW_vxibW5vxš`bn Ÿ>WjdU0fP`cW|¬«Nnzi8`bnzšl¨<jldU(m t‚` ®ƒzƒxÁ.ƒ ‡†Á¯‡z‡ é­Cuevx|Ujvxš%ŸŽvx`cjl`8«NfUdU~aœjnxd©jd‹aœWicwynzš›vacjnzd `cWW£?`ZvxdHvxwUwPicn–̆jVhvaœjlnzd fˆ nx«%aœSUW5«NnzibV N +1. $. N +1. X% &. K. $. K. fˆ(x) =. &. N X. wn Φ(x − xn ). ¦}SUWibW Φ(x) = φ(kxk) jl`Zvhiœvx|Ujvxš«NfUdU~aœjnxd¯­Zt.ÌPvxV'wUšW`Znx«Äiœvx|UjvxšŸŽvx`bj`°«NfPdU~acjnzdU` vxicWzjl¨xWd¤jldˆR vxŸUšlWhƒz­  dˆacSUWªueÅ$Ê acWibVhjldUnzšnxx_zÁPacSUWCwynz`bjlaœjlnzdU` x , n = 1, . . . , N vxicW5~vxššlW|(aœSUW ¹ Ž¸º¹³œ±­ R)SUWª~n<W '~jWd‹ac` w = [w , w , . . . , w ] vxibWª|UWacWibVhjldUW|ˆ«NibnzVaœSUWCjd‹aœWicwynzš›vacjnzd ~nzdU|PjlaœjlnzdU` n=1. n. . 1. PQP. (. RTS UWVXU. 2. N. >.

(18) . ³c·x¹¹  ² ®¶ O¹c·x² . fˆ(xm ) = fm ,. X . ¦}SUj~S~–vxdŸyW8¦}icjlabaœWdHjld(Vvacicj Ì«NnzibVvx`. m = 1, 2, . . . , N . R)SUWVhvaœibj®Ì A SŽv`CWšlWV'Wd‹aœ` A = Φ(x − x ) vxdU|Èjl` `b_<VhV'Wacicjl~'`bjdU~W Φ j` viœvx|Pj›vxš¯«NfUdP~aœjlnzd¯­ZÊQnxieacSUWC«NfUdU~aœjlnzdU`ejd¤R vxŸUšlWhƒzÁyaœSUWVvpaœicj Ì A jl`8vxšl`cn Žµ:± ô¸ x¹ <¹ ô¸º¹°«Nnzi5W¨xWi{_¬`cWanx« N |Ujl`baœjldU~a wynzjld?ac`5jd R aœSUjl`5j`8acicfUW«Nnzi vxd‹_¤¨vxšlfUWnx« nzi d ­^†fP~Sˆ«NfUdU~aœjnxdU`}vxicW `cvxj|aœn'Ÿ>W˲ µ ô¸ ¼µ y· Žµ:± ô¸ x¹ <¹ ô¸º¹­JR)SUWicW N vxicW8icvx|Ujvxš>ŸUvx`cjl`§«NfUdU~aœjnxdU`$¦}SUj~S(|PndUnxa}SŽv–¨zW8acSUj`§wUicnzwyWi{a _ `cnzV'W8WÌPvxV'wUšlW`)vxibW zjl¨xWdÂjdÉR.vxŸPšW‡†­  dÈacSUj`ª~vx`cWÁ‚¦§W(~vxd Vvx£WaœSPWu°Å$Ê µ ô¸ ¼µ y· Žµ:± ô¸ x¹ <¹ ô¸º¹§Ÿ‹_vx|U|UjldU'v`cfUj®avxŸUšlWZ« vxV'jš®_hn«Äwynzšl_<dUnzV'j›vš`­ Aw = F. mn. m.  = . n. . d. 16       .  .   .  = . .       .  .  = . fˆ(x) =. N X. M (q). wn Φ(x − xn ) +. X. αl pl (x). ¦}SUWibW p , l = 1, ...M (q) «NnxicV'`JvŸŽv`cj`‚«Nnzi P Á‹aœSUWe`cwUvx~Wenx«¯wynzš®_†dPnzVhjvxš` nx«¯|PWzibWW ­‚R)SPWWk<fUvaœjlnzdU`$aœn'|UWaœWibVhjldUW8aœSPW~n†W '~jWd‹aœ` w vxdU| α vxibW ≤q n=1. l=1. l. . N X. wn Φ(xm − xn ) +. n=1. M X. l=1 N X. q. αl pl (xm ) = fm , wn pl (xn ) = 0,. m = 1, . . . , N l = 1, . . . , M. )R SUWvxŸyn ¨xW`cWaËn«ZWk<fUvaœjlnzdU`ªjl`zfŽvxicvxd‹aœWW|Âaœn©SŽv–¨zWv©fUdUjlk?fUW(`cnzšlfPaœjlnzdÉ«Nnziªvxd‹_ |Uj`ôobnzjd‹a$|Uvavª`bWa–­ « vxdU|(aœSUW5fPdU£?dUn:¦}d«NfUdP~aœjlnzd aœSUWdacSUW vxŸyn:¨zW jd‹aœWicwynzš›vacjnzdh¦}jšš>WÌPNvx~aœ≥šl_0MicWwPicn<|UfU~W5acSUW5«NfUdU~acjnzdO­ f ∈ P HÓ ” Ï R)SUW§ŸŽv`cj`%«NfUdU~aœjnxdU` ~vxdªŸyW§WjlaœSPWi%|UW~icW–v`cjdP N«Nnzi%WÌPvxV'wUšlWGacSUW vxfU`b`cj›vd  nzijldU~ibW–vx`bjdU N«NnziWÌPvxV'wUšW'aœSUW'aœSUjldÉwUšvaœWh`cwUšljdUW` 5«NfUdU~acjnzdP`ÁÄvdU|šWvx|Àacnˆ«NfUšš ×Ö Ö¼Ù –ùâÛ }×´ü ( ×´Û ÝÛéù × ( Û Ù‚ú . pú¼ÚºÖ¼ùâà Û ù á⠐ÙJø:Ö¼×àpàÙcøeù ( Û ùûúúéÙbÚ Û¼ùâ× ( n=1. q. M. . .

(19) . GN.  . . N . . . . QP. ÷.

(20) À¹¸¼·x»µ <¹ ± ¬·<¹³œµ y·x» ªµ y¸ ô» :·x¸ ¼µ X°vxV'W m.vxicvxV'WaœWic` φ(r) q ^†wUšljdUW r s > 0, s ∈ / 2N q ≥ ds/2e R)SPjd†ž wUš›vacW8`cwPšjdPW r log r s > 0, s ∈ 2N q > s/2 [fUšlacj®ž k?fŽv|Uicjl~ (r + a ) s > 0, s ∈/ 2N q ≥ ds/2e R vxŸUšlW‡ §nzdU|Uj®aœjlnzdŽvxšlšl_'w>nx`cjlacjl¨xW5|UW¿ŽdPjlaœW5«NfUdP~aœjlnzdU`   .  .

(21)   

(22) . Š.  . s. s. 2. 2 s/2. M. V vacicjl~W`­°R)SPWicWËvicWªvš`cnhŸŽvx`bj`°«NfPdU~acjnzdU`e¦}jlacS¤~nzV'wŽvx~a8`bfUwUwynziba°¦}SUj~S©šlW–vx|aœn `cwŽvxib`cW~n<W '~jlWd‹aÄVhvaœibj~W` SUn:¦§W¨zWi aœSUW`cW$zj®¨zWGnzdUš®_vxšzWŸUiœvj~J~nzd‹¨xWicxWdU~W$¦}SUjšlW aœSUW `cV'n<nxaœS(ŸŽv`cj`)«NfUdP~aœjlnzdU`)zj®¨zW W̆wynzdUWd?acj›vxš~nzd‹¨zWiczWdU~W­ HÓ ” Ï

(23)  d'aœSUW°wUicW`cWd‹a$¦nzib£Ë¦WZ~nzdU`bj|UWinzdPšl_Ëjd‹acWicwynzšvaœjldU u°Å§ÊQ`J¦}SUjl~SWÌPvx~aœš®_ icWwPicn<|UfU~WeaœSUW°jdUwPfPa§|UvavP­‚q5dPWZ~–vd0vxšl`cnCfP`cW°¿PacaœW|(ueÅ$ÊÀV'n†|PWš`‚¦}SUjl~S0Vhv:_ËdPnxa WÌPvx~acšl_¬jld?acWibw>nzšvaœWacSUWh|UvavP­0u°Å$Ê Vhn<|UWš`5~–vdÈvxšl`cnŸ>Wh~nzdU`bj|UWicW|À¦}SUWicWhacSUW ~Wd‹acWic`e|Un'dUnxa}~nzjdU~j|UW8¦}j®aœS(aœSPWšln†~vaœjlnzd0nx«%aœSPW|Uvavwynzjd‹aœ`­ . M. . . G(*'. BI4 7L9)< . 7 7BI: ?H. 72/9=:;<.=4 7!9 @. R)SUWvacacWd?fŽvacjnzd(« vx~aœnzi$jldiœvx|UjvxšOŸUvx`cjl`$«NfUdU~acjnzdP`)SŽvx`ev~icj®aœjl~–vxš>jd ŽfPWdU~WnxdacSUW vx~~fUiœvx~_¬nx«GaœSUWËjd‹acWicwynzšvaœjlnzd¤V'n†|UWš¼­ªÃÀWËjššlfU`baciœvacWCaœSPj`8¦}jlacSÉv(d?fUV'Wibj~–vš‚WÌ?ž vxVhwPšWx­%R)SUWeueÅ$ʤjd‹aœWicwynzš›vd?aÄj`‚~nxdU`bacicfU~aœW|Ë«Nnzi‚R%W`{a§ÊŽfUdP~aœjlnzdŒ  `bWWevxwUwyWdU|Pj®Ì  fU`cjldUhacSUWC|Žvpav«NicnzV ƒ:‰ËWk?fŽvxšlšl_`bwŽvx~W|©w>nxjd‹aœ`ejd [0, 2] ­}R)SUWCWicicnxi°ŸyWa ¦WWd¤aœSUW jd‹aœWicwynzš›vxd‹avxdP|ÀaœSPWhW´ÌUv~aC«NfPdU~acjnzd¥j` W¨vxšlfŽvacW|ÉnxdÉvzicjl|¥n«5ƒ:‰z‰w>nxjd‹aœ`­R vpž ŸUšW  G`cSPn ¦}`aœSUWeWibicnzi§vxdU|~nzdU|Uj®aœjlnzdhd?fUVCŸ>Wi«NnziG|Uj >WibWd‹a§vacacWd?fŽvacjnzd'« vx~acnzic`­ ÃÉW¤dPnxaœjl~WHacSŽvah«NnziŸynxaœS ¨zWi{_Ç`bVvxšlševxdU|ƨxWib_ƚ›vxibzW¨xvšfUW`0nx« a aœSPW¤Wibicnzihj` SUjzSO­ R)SPWH~nzdU|Uj®aœjnxdÂd<fPVªŸ>Wihn«°acSUWH~n†W '~jWd‹ahVhvacicj®Ì j``cWWdÆacn¬jdU~icW–v`cW ¦}jlaœSËjldU~ibW–vx`bjdU ¨vxšfUW`‚nx«OacSUWevacacWd?fŽvacjnzdË« vx~aœnzi­.R)SUWeSUjxS'AWicibnziGvaGš›vxibzW$¨vxšfUW` nx« a j`|UfUW'aœnaœSUWhd<fPVhWicj~vxšJjdU`{avxŸPjšj®a _©icW`cfUš®aœjldU«NibnzV jšlš®ž ~nzdU|PjlaœjlnzdUjldUnx«§aœSUW Vvacicj Ì A ­¬X°naœWacSŽvav`ªšnzdP©vx`CacSUW0~nxdU|UjlacjnzdÀd?fUVªŸyWiªjl`ªdUnxa¨zWi{_ÈSUjlzS¯Á.acSUW jd‹aœWicwynzš›vxd‹aWÌPvx~aœšl_ÀicWwUicn<|UfU~W`CacSUWaciœvxjldUjdUH|ŽvaœvP­ˆR)SUWueÅ$Ê jld‹aœWibw>nxš›vxd‹aCvxdU| aœSUW'WÌPvx~aC«NfUdU~aœjlnzdÈvxibWhwPšnxabaœW|¥jdÉÊ.jxfUicW`'ƒx­Ê.jzfPicWh‡`bSUn:¦}`aœSPWh¨vxicjvaœjlnzd©nx« v:¨xWicvxzWWibicnzi vdU|¬~nzdU|Pjlaœjlnzd¤d?fUVªŸyWi8¦}j®aœS¥vabaœWd?fŽvpaœjnxd¤« vx~acnzi­ÃÉWdUnaœj~WCaœSUva aœSUW°Wicibnzi§SUvx`$vCV'jdPjVªfUV «Nnzi$vwŽvxibacj~fUš›vxi‚¨vxšlfUW°n«vacacWd?fŽvacjnzdh« vx~acnzi a ≈ 0.45 !". . . o. PQP. (. RTS UWVXU.

(24) ³c·x¹¹  ² ®¶ O¹c·x² ‰P­â‰Pƒ ‰P­®ƒ ‰†­û„ ƒz­â‰ ‡†­ ‰ a [HW–vdHWicicnxi ƒz­ ‡ ‰†­lƒ–Œ‹‡ ‰P­â‰Pƒzƒ–Œ ‰P­ ‰ ‹Š ƒ:†­ [ˆv ÌWibicnzi ƒz­ ‡Œ ‰†­û‡†ƒ ‰P­â‰Pƒ ƒ ‰P­®ƒ „x ƒ †­  §nzdU|Uj®aœjlnzd(dUnU­ ƒz­â‰ P­âŒ 1.1 × 10 3.4 × 10 2.8 × 10 R.vxŸPšW Ht>W~an«5vabaœWd?fŽvpaœjnxd « v~aœnxi'nxd acSUWHWicibnziËnx«5ueÅ$Ê jd‹aœWicwynzš›vacjnzdÀ«Nnzi R W`baeŒ . %. X . %. . . X%. . 9. 14. 18. !M. 1.4. 1.2. 1.4 Training data Exact Evaluated. 1.2. 0.8. 0.6. 0.6 f. 1.0. 0.8. f. 1.0. Training data Exact Evaluated. 0.4. 0.4. 0.2. 0.2. 0.0. 0.0. −0.2. −0.2. −0.4 0.0. 0.2. 0.4. 0.6. 0.8. 1.0. 1.2. 1.4. 1.6. 1.8. −0.4 0.0. 2.0. 0.2. 0.4. 0.6. 0.8. x. 1.2. 1.4. 1.6. 1.8. 2.0. 1.2. 1.4. 1.6. 1.8. 2.0. x. 1.4. 1.2. 1.0. 15 Training data Exact Evaluated. 10. 1.0. Training data Exact Evaluated. 5. −5 f. 0. 0.6 f. 0.8. 0.4. −10. 0.2. −15. 0.0. −20. −0.2. −25. −0.4 0.0. 0.2. 0.4. 0.6. 0.8. 1.0. 1.2. 1.4. 1.6. 1.8. −30 0.0. 2.0. 0.2. 0.4. 0.6. 0.8. 1.0. Ê.jzfPicW'ƒ eu°Å$Ê jd‹aœWicwynzš›vxd‹ae«NnziZR%W`{a Œ év a = 0.01 Á  Ÿ  a = 0.1 Á ~  vxdU|  |  a = 1.0 x. M. x. TM. a = 0.5. ¦}jlaœSÀv–¨zWiœvxzWhWibicnzinx«e‡†­ ŠW´ž ŒU­r-acSUWnzibWacj~–vš¯obfP`baœj®¿Ž~–vpaœjnxd¥«Nnzi5acSUWW´ÌPjl`bacWdU~Wnx« vxdnzwPaœjlVvš>¨vxšfPW8«Nnzi$aœSUWvabaœWd<fUvaœjlnzd(« vx~acnzi)SŽvx`}ŸyWWdicW~Wd?acšl_(xjl¨zWdHjld ®ƒ ¼­ -$ X&. QP. ÷. Á.

(25) À¹¸¼·x»µ <¹ ± ¬·<¹³œµ y·x» ªµ y¸ ô» :·x¸ ¼µ   .  .

(26)   

(27) .  . %. 0.020. 16. 10. 0.018 0.016. Condition number. 0.014. L2 error. 0.012 0.010 0.008. 9. 10. 0.006 0.004 0.002 0.000. 2. 0.2. 0.3. 0.4. 0.5. 0.6. 0.7. 0.8. 0.9. 10 0.2. 1.0. 0.3. 0.4. 0.5. 0.6. 0.7. 0.8. 0.9. 1.0. Ê.jzfPicW‡  vxibj›vacjnzdnx« L Wibicnzi}vxdP|H~nzdU|Uj®aœjnxd(d<fPVªŸ>Wi)¦}jlaœSvabaœWd<fUvaœjlnzd(« vx~acnzi Attenuation factor. Attenuation factor. M. 2. G(. H72*CE26.872/9):;9=<>.8717BI: ?H.87!2/9=:. <.)4 79=@.  d ƒ Š éÁQ`cW¨xWicvxšWV'wUjibj~–vš¯VhWaœSUn<|U`)«Nnzi}~SUn<nz`cjldUaœSUWvabaœWd?fŽvpaœjnxd« vx~aœnzi}vicW|Uj`ºž ~fU`b`cW| `bWWªacSUj`8wUvxw>Wi°«Nnzi°«NfUibacSUWi8ibW«NWicWdP~W`­ª^<nzVhWicW`cW–vic~SUWic` SŽvx|©W´ÌPwPicW`b`cW| aœSUWHSUnzwyWHaœSUvaacSUWibWˆVhv:_ ŸyW¤v¥fUdUjl¨xWib`œvxšlšl_ nzwPacjVhvxš$¨vxšfUWnx«8acSUW©vabaœWd<fUvaœjlnzd « vx~acnzi­Å$v`cW|ÉnzdÉd?fUV'Wibj~–vš‚W̆w>WicjlVhWd?ac`Á‚u}jwPwŽv ƒ Š §~nzdU~šlfU|UW`aœSUvaacSUW'Ÿ>W`ba vacacWd?fŽvacjnzd0« vx~aœnzi§|UWwyWdU|P`°nzd0acSUW d?fUVªŸyWi}vxdU||Ujl`bacicjŸPfPaœjlnzdnx« |Žvaœvªw>nxjd‹aœ`ÁUnzd aœSUW5«NfUdU~aœjlnzd f vdU|HnxdacSUW wUibW~jl`cjlnzdnx« acSUW ~nzV'wUfPaœvaœjlnzd ­ rZd¥nzŸ‹¨†jlnzfU` ¦$v–_©acnHnzw†aœjV'j¢WCaœSPWvabaœWd<fUvaœjlnzd¥« v~aœnxi5j`5aœn|Ujl¨<jl|UWaœSUW'v–¨vxjšvxŸUšW |Žvavªjld‹aœnCa ¦nh`bfUŸU`bWaœ`ÁQv0¸é³b· <¶Ë±:¹¸OvxdU|v0¸ ¹±¸ <¶Ë±:¹¸ ¦W5~–vxdfU`bW8aœSUW8aciœvxjldUjdP `cWaËacn©~nzdU`{aœibfU~a'aœSUWueÅ$ʾV'n†|UWš$vxdP| fU`bWjlaªacn¥W¨vxšfŽvpaœWacSUW(«NfUdU~acjnzdÂnxd acSUW aœW`{aœjldU`bWa­‚R)SUW8vabaœWd<fUvaœjlnzd'« v~aœnxiG~vxd0ŸyW°nxwPaœjlVhjl¢W|Ë`bnaœSUvaJaœSUW°WicibnziJnx«jld?acWiºž w>nzšvaœjlnzd©nzd¬aœSUWËaœW`bacjdU`cWaCjl`5VhjldUjV'j¢W|¯­Ë½en ¦W¨xWiÁÄjd¥wUiœv~aœjl~–vxš.nzwPaœjlVhjl¢–vacjnzd wUicnzŸPšWV'`Á%¦§W(Vhv–_¥dUnxaªSUv:¨xW(`cf '~jWd‹ad?fUVCŸ>Wiªnx«)|Žvpavˆwynzjd‹ac`aœnˆw>Wib«NnzibV acSUW vxŸ>n:¨xW`bfUŸ†ž |Ujl¨<j`bjnzdO­ÄrZdHvxšlacWibdŽvaœj®¨zW vxwPwUicn‹v~SHjl`$aœSUW ¹c· x¹ cµ O¹ cµp²<¸>aœW~SUdUjlk<fPWx­ sWa fˆ (x; a) |UWdUnxaœW5acSUWu°Å$ÊÂjld?acWibw>nzšvxd‹a)~nxdU`bacicfU~aœW|HfU`cjldUaœSUW |ŽvpavËw>nzjld‹aœ`. $ &. . $ X&. .  . . . !. .   . (n). Ûù Ù Ý$÷ Úº×( Þ$ù ( àpÚ{Û¼ÝÙ Ù{Ú ( Ö¼ÛÛéÙbÙbú ú ÛéÖ¼. ùú (púéÙºpÖ¼ÛùÙbÚ ×´ú $ü. áâá Û>ÙbÝù (øpúPÛé×JúNÝ Û ( ÝÙbÛ¼Öéù Ùb(Ù úyÛéÙ{Û Ö¼pàxÝ´ù ×úÛyáûÝ)ÝÛ pÛéÚ{ùÙ{××Ö¼(Þ$Ù%üÙàp×:ÝÖ¼ùûÚ ÞúNÛÛ .pú>ú á . ÝÝp( . ú (Ý´Ù{ÛÛùâüÛé××´Ù Ö¼ü( Þ$.pÝá §Û¼ùâÝ× Ú{( Ú ü®. ÝÖ Ú ÝÛ¼Ûé×ÙOÖ¯ü Ý×(ÖQø}Ý´á áâá:×:ü Ú{. Ý´( ÛéÚºù ×Ûéù( × ( ×úü ( X (n) = {x1 , x2 , . . . , xn−1 , xn+1 , . . . , xN }. . . PQP. P . (. RTS UWVXU. . . . . . 

(28) .  C(K)  . . K. . . R. d.

(29) ƒ:‰. ³c·x¹¹  ² ®¶ O¹c·x² . X . 1.2. Cost function of Rippa. 1.0. 0.8. 0.6. 0.4. 0.2. 0.0 0.2. Ê.jxfUicW. 0.3. 0.4. 0.5. 0.6. 0.7. 0.8. 0.9. 1.0. vicj›vpaœjnxd0nx« C(a) ¦}jlaœSvabaœWd<fUvaœjlnzd(« vx~acnzi$«Nnzi)R%W`ba°Œ Attenuation factor. M . j¼­ Wx­®Á)Ÿ?_ÆjzdPnzicjldUÀacSUW¤d aœS¡|ŽvpavÉwynzjd‹ajdÆacSUWˆ«NfUšlš°|ŽvpavÉ`bWa–­ R)SUjl`0jd‹acWicwynzšvxd‹a ~–vxdŸyWfU`bW|ÂaœnˆW`bacjVhvaœW'aœSUWh«NfUdU~acjnzdÀ¨xvšfUWvaCacSUW0jxdUnzicW|Èwynzjd‹a x vxdU|ÉacSUW ~nzibicW`bw>nxdU|UjdPhWicicnxi E = f − fˆ (x ; a) ~–vxdHvxš`bnhŸyW~nzV'wUfPacW|¯­§Å_jzdPnzicjldU W–vx~Sª|Uvavew>nzjld‹a `bfU~~W`b`cjl¨xWš®_ªvxdP|ª~nzdP`baœibfU~acjdUZvxdCjld‹aœWibw>nxš›vxd‹a¦§WnzŸPaœvxjdvxdCWicibnzi ¨zW~aœnzi n. n. (n). n. n. E(a) = [E1 , E2 , . . . , EN ]>. eu jlwUwŽv ®ƒ:Š `cfUxzW`{aœ`ˆV'jdPjV'j¢jldUÉ`bnzV'W¥dPnzicV nx«aœSPWÉvxŸyn:¨zW¥Wibicnzi¨zW~aœnxi¦}j®aœS icW`bw>W~aeaœnaœSPWvpacaœWd?fŽvaœjlnzd(« vx~acnziÁPj¼­ Wx­®ÁP¿ŽdU| a `bfU~SHacSŽva viczV'jd kE(a)k a = uejlwUwŽv)zjl¨xW``cnxVhWJd?fUV'Wicjl~–vxš‹W´ÌPvxVhwPšW`acn°`bSUn:¦ÈaœSŽvpa%acSUW‚«NfUdU~aœjnxd C(a) = kE(a)k Ÿ>WSŽv–¨zW`)`bjV'jšvxi.aœnaœSUWZvx~acfŽvxšyWicibnzi­  dwŽvxibacj~fUš›vxiÁ‹aœSUW_0vx~SPjW¨xWZaœSPWjiGV'jdUjlVªfUV va}`cjlVhjlš›vxi‚¨vxšfPW`)nx«.vacacWd?fŽvacjnzd0« v~aœnxi­JÊ.jlzfUicW" §wUšlnxaœ` C(a) «Nnxi$R W`baeŒ¦}SUj~S jdU|Ujl~–vacW`$acSUW W̆j`{aœWdP~Wnx«ÄvdnxwPaœjlVªfUVͨvxšlfUW a ≈ 0.353 ­ $ &. ∗. ∗. . ∗. QP. ÷.

(30) À¹¸¼·x»µ <¹ ± ¬·<¹³œµ y·x» ªµ y¸ ô» :·x¸ ¼µ   . G(. .  . 462/BI: 7. 2*C.

(31)   

(32) . ƒzƒ.  .  ,/B CEBI: 7.87!2/9=:. )R SUW~nzV'wUfPaœvaœjlnzd¤nx« C(a) ibWk?fUjibW`5aœSPW`cnzšlfPaœjlnzd¤nx« N šljdUWvxiZWk<fUvaœjlnzdU`5W–v~S¥n« nzic|UWi (N − 1) × (N − 1) ­ «OacSUWešjdPW–vxi‚`{_†`{aœWV-jl`J`cnzš®¨zW|hfU`cjldUs%Y¡|UW~nzV'wynz`cj®aœjnxd aœSUW(aœnavxš$d?fUVCŸ>Wi'n«ZnzwyWicvaœjlnzdU`ªjl`nx«°nzic|UWi N ¦}SUj~S ~–vxd ŸyW¨xWi{_ W̆w>WdU`cj®¨zW W¨zWdH«Nnzi}V'n†|PWiœvpaœW5`cjl¢W|ŽvaœvË`bWac`­§r°dˆW h~jWd?aZvxšlznzicj®aœSUV3jl`exjl¨zWdHjld ƒ Š ¦}SUj~S icWk?fUjlicW`$nzdUš®_nzdPW5sY |UW~nzV'w>nz`bjlacjnzdva)vª~nz`ba)n« O(N ) ­JÅWšn:¦ Á<¦§W5W`c`cWd‹aœj›vššl_ icWwPicn<|UfU~W5acSUWvxšznxicjlacSUV-vx`}zjl¨xWdjd ƒ Š é­ R)SUWu°Å$ÊÂjld?acWibw>nzšvxd‹a)fU`bjdUËaœSUW |Žvpavw>nxjd‹aœ` X j`)zj®¨zWdŸ‹_ 4. . $ X&. 3. -$ &. (n). fˆ(n) (x) =. N X. (n) wm Φ(x − xm ). ¦}SUWibW§aœSUW§~n<W '~jlWd‹aœ` w vicW§|PWaœWicV'jdUW|ªŸ‹_C`bnzšl¨<jldU°acSUW$jd‹acWicwynzšvaœjlnzd wUicnzŸPšWV ­ ÃÀWH|PWdUnxacWacSUj`'jd Vhvaœibj®Ì fˆ (x ) = f (x ), r = 1, . . . , n − 1, n + 1, . . . , N dUnxavpaœjnxdvx` m=1,m6=n. (n). (n). r. r. ¦}SUWibW A j`nxŸPavxjldUW|È«NibnzV vxdU| F = (f , . . . , f , f acSUWd y =0 (n). (n). 1. n−1. A(n) w (n) = F (n). Ÿ‹_ÂibWV'n:¨†jldU©aœSUW n  aœS icn:¦ vdU| n  aœS ~nzšlfUVhdOÁ ­§ÃÀWCdUnaœW aœSŽvaej®« y ∈ R j`}`bfU~SˆaœSUva. A > n+1 , . . . , fN ). N. n. ºƒ . Ay = z =⇒ A(n) (y1 , . . . , yn−1 , yn+1 , . . . , yN )> = (z1 , . . . , zn−1 , zn+1 , . . . , zN )>. X°n:¦ ~nzdU`cjl|UWi)acSUW `cnzšlfPaœjlnzd. u[n]. aœnacSUW `b_<`bacWV. é ‡ ¦}SUWibW e j`JaœSUW n  aœS0~nzšfPVhd'nx«¯acSUW N × N j|UWd?acjla _'Vhvaœibj®Ì>­ a§j`GW–vx`{_Ëaœn¨xWibjl«ô_ aœSŽva u 6= 0 ­  dU|PWW|OÁyj®« u = 0 aœSUWdHŸ‹_ {ƒ-}vdU| ¼‡¦W~nzdU~šfU|UW5acSŽva Au[n] = e[n]. [n]. [n] n. [n] n. [n]. [n]. [n]. [n]. A(n) (u1 , . . . , un−1 , uk+1 , . . . , uN )> = 0. PQP. (. RTS UWVXU.

(33) ƒ ‡. ³c·x¹¹  ² ®¶ O¹c·x² . X . ¦}SUj~ShjV'wUšjlW`Á‹Ÿ‹_ËaœSPW°dUnxd†ž `bjdUzfPš›vxibjla _ªn« A aœSUva u = 0 Á?¦}SUjl~S0j`JjV'wynz`c`bjŸUšlW Ÿ>W~–vxfU`bW u j`ZacSUWË`cnzšlfPaœjlnzdˆacn ºƒ-´­sWa fU` dUn:¦ ~nzdU`bj|UWi5aœSUWª¨xW~acnzi v ∈ R |UW¿ŽdPW|ˆŸ‹_ (n). [n]. [n]. [n]. v [n] = w −. R)SUWd¦§WSŽv–¨zW aœSUva Av. [n]. = Aw−. vxdU|`cjldU~W. wn [n]. un. [n]. Au. vn = 0. [n]. = F−. wn [n]. un. e. [n]. =. . wn [n] un. N. u[n]. f1 , . . . , fn−1 , fn −. ÁU¦§W fU`bW ºƒ aœnË~nxdU~šlfU|UW5aœSŽvpa. wn [n]. un. , fn+1 , . . . , fN. >. >  [n] [n] [n] [n] w (n) = v1 , . . . , vn−1 , vn+1 , . . . , vN. R)SUj`)jlVhwUšljW`§aœSŽvpa. fˆ(n) (xn ) =. N X. (n) wm Φ(xn − xm ). m=1,m6=n. =. N X. [n] vm Φ(xn − xm ). m=1,m6=n. =. N X. [n] vm Φ(xn − xm ). m=1.  Av [n] n wn = fn − [n] un =. ¦}SUj~S¬zj®¨zW`8acSUWC«Nnzšlšn:¦}jdP`cjlVhwPšW«NnxicVªfUšvh«NnzieaœSUWWicicnxi5nx«Gjd‹aœWicwynzš›vacjnzdHva8acSUW W̆~šlfU|UW|wynzjd‹a x n. QP. ÷.

(34) À¹¸¼·x»µ <¹ ± ¬·<¹³œµ y·x» ªµ y¸ ô» :·x¸ ¼µ   .  .

(35)   

(36) . ƒ.  . X. wn En = fn − fˆ(n) (xn ) = [n] un. « ¦WfU`cW'sY |UW~nzV'w>nx`cjlacjnzdHaœn(`cnxšl¨zWacSUWšjldUW–vxi°Wk?fŽvacjnzd©`{_<`baœWVh`Á%acSUW~nx`ba nx« nzdUW5sY |UW~nzV'wynz`cj®aœjnxdnx«aœSPW5Vvacicj Ì A j` O(N ) ÁP¦}SPjšWeaœSUWZ~nz`{a}nx«`cnzš®¨<jdUCacSUW šjdPW–vxi$Wk?fŽvaœjlnzdU` ¼‡ )jl` O(N ) `bn'acSŽva)aœSPW acnxavš¯~nz`{aej` O(N ) ­ N uejlwUwŽv(SŽvx`fU`cW|ÂŧibWd‹a  `V'WacSUn<|¥¦}SUjl~SÉjl`vŸUicvx~£xWaœjdP¤vxšlznzicj®aœSUV,«Nnzi šn<~–vpaœjdP aœSUW¬V'jdUjlVªfUV­  d nxfUi0aœW`baœ`¦W¥«NnzfPdU| acSŽvajlajl`(dUnxawynz`c`bjŸUšlW¤aœn wUicW|Uj~aHjld vx|P¨vxdU~WCv'`cfUj®avxŸUšlW ŸUiœvx~£WacjdU0jld‹aœWi{¨vxš`cjldU~WaœSUjl`°|UWw>WdU|U`°nzdHacSUWC|ŽvpavË`cWaÁyacSUW «NfUdU~acjnzd¤vxdU|©|UjlVhWdU`cjlnzd¤nx«JaœSPWªwUicnxŸUšWVH­ ½eWdU~Wª¦§WSŽv–¨xW'fP`cW|¥m vxibacj~šlW^<¦§vxibV q5w†aœjV'j¢vaœjlnzd émG^Uqeacn0šn<~–vacWacSUWªV'jdUjlVªfUVnx«‚acSUWª~nz`ba8«NfPdU~acjnzd ­^†jdP~W aœSUjl`Cj`ªvˆnzdUW0|PjV'WdU`bjnzdŽvšV'jdUjlVhjl¢–vacjnzdˆwUicnzŸPšWV v¤`cVhvxšlšGd?fUVCŸ>WiªC(a) nx«ewŽvxi{aœj~šW` `cSUnzfPš|ŸyW)`cf '~jlWd‹a ¦W)SŽv–¨zW}fU`cW|'¿P¨zW}wŽvxi{aœj~šW`ÄjdªacSUW)`b¦§vxicV vxdU|aœW`bac`GjldU|Ujl~–vacW aœSŽva)acSUW VhjldUjVCfUV3w>nzjld‹a}~–vxdŸ>W5šln†~vaœW|(¦}jlaœSšlW`c`)acSŽvxd¥ƒ:‰z‰ªjlacWicvaœjlnzdU`­. 3. 2. !. G(. G9)CEB. 3. . H@T.=4 72/46.=, 2/001?5BI0. )R SUWÉicvx|Uj›vš5ŸŽvx`cjl`H«NfUdP~aœjlnzdU`|UWwyWdP|¾nzd acSUWÈt‚fU~šj|PW–vxd |Uj`{avxdU~WɟyWa ¦WWd a ¦§n |ŽvavÀw>nzjld‹aœ`­ «acSUW¤~nzVhwynzdUWd‹aœ`0nx«5acSUW¤jldU|UWwyWdP|UWd‹a(¨vxicjvxŸUšlW` SŽv–¨zW ¦}j|UWšl_ª|Pj >WicWd‹aJ`c~–všW`‚acSUWd'aœSUW}t‚fU~šj|PW–vxdËdUnzibV Vhv:_CdUnxaGŸyW}vxwUwUibnzxwUic∈jvaœRW­

(37)  d v¬¦WjlzS‹aœW| dUnzibV SŽvx`'Ÿ>WWdÆfP`cW|Æjd wUš›vx~Wnx«ZacSUWˆt‚fU~šjl|UW–vxd dUnzibVHÁG¦}SUWibWacSUW ¦§WjzS‹aœ` |UWw>WdU|Énxd¬acSUWˏziœv|UjWd?a n«acSUW«NfUdU~acjnzdO­Ë½°WibWxÁaœSUWËjldU|UWwyWdP|UWd‹a¨xvicj®ž vxŸUšW` {x , n = 1, . . . , N } vxdP| «NfUdP~aœjlnzd¨vxšfUW` {f , n = 1, . . . , N } vxibW`c~–všW| Ÿ>W«NnzicWh~nzdU`{aœibfU~acjdU¤acSUW(ueÅ$Ê V'n†|PWš¼­HR)SUW0jldU|UWwyWdP|UWd‹a¨vxicjvxŸUšlW` vxibW `c~–všW|C`cnZacSŽvaÄWvx~S~nxVhwynzdUWd?a.nx« x šjlW`%jdaœSUWjd‹aœWib¨vxš (−1/2, +1/2)x¦}∈SPjšRWJ«NfUdU~´ž aœjnxdˆ¨vxšfUW`5vxibW`c~–všW|¤acn(šjlWCjd¤acSUWjd‹acWib¨vxš (0, 1) ­ «JacSUWª«NfUdU~aœjnxd©j`8~nzdU`baœvxd‹a–Á aœSUWdhjld'acSUW}`c~–všW|h`cwŽv~W°vxššPacSUW)«NfUdU~aœjnxd'¨vxšlfUW`‚¦}jšlšPŸyW°¢WibnCvxdP|'acSUW°~n†W '~jWd‹aœ` vicW'vxš`bn¢WibnU­0r3~nxdU`baœvxd‹a«NfUdP~aœjlnzd¥j`5aœS?fU`icW~n:¨zWicW|ÂW´ÌPvx~acšl_©«Nnzi vxd‹_©¨vxšlfUW w nx«‚vabaœWd<fUvaœjlnzdH« vx~aœnzi­)X°naœWacSŽva}aœSPj`°v:¨xnzj|P`eacSUWC|Uj '~fUš®a _nx«ÄibWwUibn†|UfP~jdP~nxd†ž `bavd?a«NfUdU~aœjnxdU`¦}j®aœSÉu°Å$Ê ¦}SUj~SÉnxaœSUWib¦}jl`cWibWk?fUjlicW`¨zWib_ Qva  a → ∞5ŸŽvx`bj` «NfUdU~acjnzdP`­ R)SUWC~n†W h~jWd?a8Vvacicj Ì A ~vxd¤ŸyW~nzVhWjšlš®ž ~nzdU|Uj®aœjlnzdUW|h«Nnzi ®·x³é¶<¹}¨vxšlfUW`enx«JvabaœWd†ž fŽvaœjlnzdÉ« vx~aœnziÁJvxdU| vxšl`cn¤«NnziC¨xWi{_š›vxibzW0vdU| |UWdU`bW|Žvav¤`bWac`­Àà SUvaËj`v¤švxicxW vacacWd?fŽvacjnzdÉ« v~aœnxiC|UWw>WdU|U`nzdÈacSUW0d?fUVªŸyWiªn«°|Uvavˆwynzjld?ac`ÁÄacSUWjliC|Ujl`baœibjŸUf†aœjnxd d. n. $ % &. n. d. . . -". . PQP. (. RTS UWVXU. .

(38) ƒ–Œ. ³c·x¹¹  ² ®¶ O¹c·x² . X . vxdU|ÈaœSPW0|UjV'WdP`cjnxd ­©R)SUW0ŸyW`{a'vacacWd?fŽvacjnzdÀ« vx~acnziCfU`bfŽvxšlšl_¥šWvx|U`acn¬vˆSUjlzSUšl_ jšš ž ~nzdU|Uj®aœjnxdUW|0~n†W '~djWd‹aZVhvaœibj®Ì>­§r°d¤fUdU~Wi{avxjld?a _wUibjdU~jwUšlW5W`{avxŸUšlj`bSUW|Hjd ‡Œ `bavpaœW` aœSUva5aœSUWhvabavxjldŽvxŸUšlWªWibicnzi vxdP|¥acSUWh~nzdU|Uj®aœjlnzd©d?fUVªŸyWi nx«§acSUW'u°Å§Ê jld?acWiºž w>nzšvaœjlnzdVvacicj Ì~–vxdUdPnxa8ŸynxaœSˆŸ>Wª`bVvšš%vaZacSUWª`cvxVhWaœjlVhW­°Ã SUWd¬acSUWCVhvacicj®Ìjl` SUjzSPšl_'jšlš®ž ~nzdU|Uj®aœjlnzdUW|OÁzjla)jl`§dUna}w>nz`b`cjlŸUšWeaœn~nxVhwUf†aœW8aœSPW8jd‹aœWicwynzš›vd?a¦}jlacS0¿ŽdUjlacW wUicW~j`bjnzdÉvxicj®aœSUV'Wacj~Ë`cjldU~W'aœSUW`cnzšlfPaœjlnzdÀn«}šjdPW–vxivxšlzWŸUicvxj~ËWk<fUvaœjlnzdU`CŸyW~nzV'W` fUdU`baœvxŸUšlWx­  d }v©VhWaœSUn<|Âj`wUibnzwynz`cW| acn¬~nzV'wUfPacW0aœSUWueÅ$ʾjd‹aœWicwynzš›vxd‹a«Nnzi `cfU~S¤jlšš ž ~nxdU|UjlacjnzdPW|0~vx`cW`­e½°n:¦W¨zWi8aœSUjl`}j`e~nz`{aœšl_(«NnxienxfUi°wPicW`bWd‹a5wUfPicwynz`cWCvxdU| ¦§WfU`bWËv0`cjlVhwUšlWšljV'jlacjdU'vxwUwPicn‹vx~SO­ à SPjšWVhjldUjV'j¢jdUªacSUW~nx`ba8«NfUdP~aœjlnzd C(a) ¦§W0~nzV'wUfPaœW'aœSUW~nzdU|PjlaœjlnzdÉd?fUVCŸ>WiCnx«)acSUW0~n<W '~jWd‹aVhvacicj®Ì A jl«)j®aCjl`Cš›viczWi aœSŽvxdh`cnzV'We`cwyW~j®¿ŽW|h¨xvšfUWÁ?acSUWdhaœSUWe~nz`{a§«NfUdP~aœjlnzd'j`GdUnxa~nzV'wUfPacW|ŸPfPa$jl`G`bWaaœn vxdˆvicŸUj®aœiœvicjš®_'š›vxibzW8wynz`cj®aœjl¨xW d<fPVªŸ>Wi­GR)SUWwŽvxibacj~šW`)jldm^Pq vxicW5acSUWddŽvacfUiœvxšlšl_ wUfUššlW|(aœn:¦§vxic|P`ZicWzjnxdU`}nx«.¦Wšlš~nzdU|PjlaœjlnzdUW|ˆvabaœWd<fUvaœjlnzd(« vx~acnzic`­  dacSUWwUicW`cWd‹a ~nzV'wUfPaœvaœjlnzdU`ÁyaœSUWCfUwUwyWi5šjlVhj®a}nzd¤aœSPWª~nzdP|Ujlacjnzd¤d?fUVCŸ>Wi8j`8`bWa5acn 1/ ¦}SPWicW  j`$aœSPWVhvx~SUjldUW5wUibW~jl`cjlnzd¯­ . $. &. $ &. . G(. . ?5CEB @T2/46.=, B .)C.  ,/BI0. R)SUW8ueÅ$ÊÀV'WaœvxV'n†|UWšUj`vxwUwPšjW|'acnC`bnzVhW°vxdŽvšl_?aœjl~–vxšU«NfUdP~aœjlnzdU`vxdU|vxWibn†|P_<dŽvVhjl~ |Žvav†­ R)SUW)wPicnzzicvxV'`%«Nnzi ~nzdP`baœibfU~acjdU°aœSUW$V'WaœvxV'n†|UWš<vxicWG¦}icjlabaœWdjd^<~jšvxŸ¯­%R)SUW šjdPW–vxi‚Wk<fUvaœjlnzdU`vxicWe`cnzš®¨zW|0fU`cjldUacSUW}«NfUdU~acjnzdP` vxdU| UÁ<¦}SUjšlW}acSUW ~nzdU|Pjlaœjlnzd d?fUVªŸyWij`~nzV'wUfPacW| fU`cjldU Q­ʎnzi(aœSUW¬aœW`baH~–vx`bW`HfU`cjldU švxicxW |Žvav`cWac` vx`8jld¤`cW~aœjlnzdÀ‡†­ „†­ vxdU|¥‡†­ „†­ „haœSUWwUibnzzicvxVh`ZvxicW¦}icjlabaœWd©jd©ÊŽnzi{aœiœvd¬ŠzŠ vxdU|ªšljdUWvxiWk?fŽvacjnzdU`ÄvxicW`cnzš®¨zW|fP`cjdP°aœSPW)s ºXZm>r + icnxfPaœjldUW` 5vdU| aœSUW icnxfPaœjldUW 'vxšl`cnË~nxVhwUf†aœW`)acSUW ~nzdU|Pjlaœjlnzd(d?fUVªŸyWi­ Ñ ” Ï “”

(39) ˜x” Ó “ R)SUWu°Å$ÊÈV'n<|UWš>j`)~nxdU`bacicfU~aœW|«Nnzi$acW`ba)«NfPdU~acjnzdU`5ƒž ŒŸ‹_(nzwPacjV'j¢jdUaœSUW vabaœWd†ž fŽvaœjlnzd0« vx~aœnzi)fU`bjdUËu}jwPwŽvªVhWaœSUn<| jldW–vx~S~–vx`bW˃:‰ªWk?fŽvxšlšl_`cwŽvx~W||ŽvaœvËwynzjld?ac` vxicWfU`cW|¯Á)¦}SUjšlWacSUWˆibW~nzdU`bacicfU~aœW|Ç«NfUdU~acjnzdÇvxdU|ÆWicibnzic`vxicWHW¨vxšfUvaœW|Ænzd ƒ–‰z‰ Wk?fŽvxšlšl_Ë`cwUvx~W|0w>nxjd‹aœ`­‚ÊŽnziR%W`{a)ŒUÁ?¦§W°`bacfU|P_'aœSUW°|UWwyWdU|PWdU~W5nx«Wibicnzivx`§v«NfUdU~´ž aœjnxdÉnx«}d?fUVªŸyWiCnx«}|Žvaœvˆw>nxjd‹aœ`C«NnxiC|Uj OWicWd‹aC~SUnzj~W`nx«evpacaœWd?fŽvaœjlnzdÉ« vx~aœnzi­  d Ê.jzfPicWˌHacSUWV'W–vxdÀWibicnzij`wUšnxabaœW|¥«NnzivabaœWd?fŽvpaœjnxdÀ« vx~aœnzib`ª‰P­®ƒzÁ ‰P­û„<Á§ƒz­â‰PÁ 1/N .

(40) .  . 

(41)  . .  

(42) . . . 

(43) . !#"%$&"('. ' *). ,+ .-. /. -. . QP. ÷.

(44) À¹¸¼·x»µ <¹ ± ¬·<¹³œµ y·x» ªµ y¸ ô» :·x¸ ¼µ   .  .

(45)   

(46) . ƒ „.  . 1 Optimal 0.1 0.5 1.0 1/N. 0.1. L_2 error. 0.01. 0.001. 1e-04. 1e-05. 1e-06. 1e-07 6. 8. 10. 12 14 Number of data points. 16. 18. 20. 8. 10. 12 14 Number of data points. 16. 18. 20. 1e+20 Optimal 0.1 0.5 1.0 1/N. 1e+18 1e+16. Condition number. 1e+14 1e+12 1e+10 1e+08 1e+06 10000 100 1 6 100 90 80. Time in seconds. 70 60 50 40 30 20 10 0. .Ê jzfPicWJŒ %u°Å§ÊHWibicnziÁx~nzdU|Uj®aœjnxdd?fUVCŸ>WiÄvxdU|aœjlVhW‚aœn°~nzdP`baœibfU~aÄVhWavxV'n†|PWš NnzdUšl_ «Nnzi}ue( jlwUwŽvªV'WacSUn†| ¨zWib`cfU`°d?fUVªŸyWi}nx« |Žvav 6. PQP. TM. RTS UWVXU. 8. 10. 12 14 Number of data points. 16. 18. 20.

(47) ƒ:. ³c·x¹¹  ² ®¶ O¹c·x² [ˆvpÌ>­JWici­ [HW|¯­Wici­ ƒz­   zt.žº‰zŠ ‡†­ „x†ƒ:t.žº‰ ƒz­ z‡z‡ zt.žº‰x P­ ‹‡ t.žº‰ ƒz­ ‰xz zt.žº‰z‡ ‡†­ ‡x‰z‰z‡xt.žº‰xŒ P­ xŒ‹t.žº‰z‡ ƒz­ ‡x‰ xzt.žº‰ aœW`{a}«NfUdU~acjnzdP` . R%W`ba ƒ ‡ Œ . §nzdU|¯­JdUnU­ [HWvxdHWici ƒz­®ƒ „z„ ŒU­ Œ t ªƒ „ ‡†­ ‡†ƒ „xxtĞ ‰ ƒz­®ƒ „z„†ƒ ŒU­ Œ zt ªƒ „ ƒz­ zPƒ–tĞ ‰‹Š ‰P­ ‡ zz‰ ƒz­ ‡Œ‹t 5‰‹„ ƒz­ „x‰‹„xxtĞ ‰ ‰P­ ‹„x ‡†­ Šz„xt 5‰z P­ „Œ xtĞ ‰ R vxŸUšW Œ JueÅ$ÊÂicW`cfUš®aœ`)«Nnzi5ƒž a∗. . %. . . %. %. . . . . TM. % %. X . %. %.   . . %. K.  . %. %. . xv dU|(aœSUW u}jwPwŽvªVhWaœSUn<|¯­ÄR)SPW ¨vxšlfUW8nx« 1/N j`§Wk?fŽvxšOacnaœSUW5`bwŽvx~jldUËŸ>Wa ¦§WWdaœSUW |Žvav(wynzjd‹ac`­CÃÀWË`cWWË«NicnxV]aœSPWË¿UzfUicWacSŽvavxšlš aœSPWhvpacaœWd?fŽvaœjlnzd©« vx~acnzic`5wyWi{«NnzicV w>n<nzicš®_'~nzV'wŽvxibW|(aœnªacSUWuejlwUwŽv¨vxšlfUWxÁUW´Ì†~Ww†ae«Nnxi$aœSUW8¨vxšlfUW8nx« a = 0.5 W¨xWdaœSUW ~SUnzj~W nx«.acSUW|UvavË`cwŽv~jdP a = 1/N ÁŽj`}`cWWdHacnhxjl¨zW ¨zWib_SUjlzSWicibnzic`­$Ê.jlzfUibW Œ vxš`bnˆ`cSPn ¦}`ªacSUWh¨vxibj›vacjnzd¥nx«$acSUW0~nzdU|Uj®aœjnxdÀd?fUVªŸyWiªvxdU|ÉacSUWhacjV'W'aœvx£xWdÂjdÀacSUW ~–vx`bWˆnx«u}jwUwUv¥nzw†aœjV'j¢vaœjlnzd¯­¡ÊŽnzi‡x‰¥|Žvav¥w>nxjd‹aœ`Á$aœSUWaœjV'W(aœnÈ~nzdU`{aœicfP~aacSUW u°Å$Ê Vhn<|UWšGŸ‹_ÉnxwPaœjlVhjl¢jdPacSUW(vabaœWd<fUvaœjlnzdÉ« vx~aœnzij`ªvŸ>nzf†a z‰ˆ`bW~nzdU|U`­ÀR)SUjl` aœjV'Wªjl`dPW–vxibšl_©jldU|UWwyWdP|UWd‹anx«§acSUWË|UjV'WdU`bjnzd¬nx«GaœSPWhjldU|UWwyWdP|UWd‹a`cwŽvx~W d vxdU| |UWwyWdU|P`0Vhnx`baœš®_ nzdÆacSUWˆ`bj¢WHnx«8acSUWˆ|ŽvpavÉ`bWa N ­ R)SPW¤nzwPacjV'j¢W|ÆvpacaœWd?fŽvaœjlnzd « vx~acnziÁ<~nzdP|Ujlacjnzdhd<fPVªŸ>Wi§nx«acSUW8šljdUWvxiJ`b_<`bacWV vdU|(Wibicnzib`«NnziGaœSUWªƒž acW`ba§~–vx`bW` vxicW8šlj`{aœW|jd0R vxŸUšlW8ŒU­JʎnziacSUWZ¿Žib`ba)a ¦n«NfUdU~acjnzdP`§¦}SUj~SvicW8`bjV'wUšWÁ<¦W5`cWW8¨zWi{_ `cVhvxšš%vxwUwPicn–̆jVhvaœjlnzdˆWicicnxic`Z¦}SUjlšW«Nnzi°acSUWªš›v`baZa ¦nUÁOacSUWªWicicnxic` vxibWCSUjlzSUWi­5R)SUW icW~nzdU`{aœicfP~aœW|«NfUdU~aœjlnzd¯Á‹|Žvaœvwynzjld?ac`JvxdU|'WÌPvx~a«NfUdP~aœjlnzdhvxicW)wUšlnxacacW|'jd'Ê.jlzfUicWe„<­ —U“”:• 

(48) %˜x” Ó Ñ R)SUW(uevx`bacicjxjdÀ«NfPdU~acjnzdÈjld‡ ž j`icW~nzdU`{aœicfP~aœW| nzd [−1, +1] × [−1, +1] fU`cjldU aœn 10 × 10 |ŽvavHw>nzjld‹aœ`C¦}SUjl~S vxicW0|Pj`bacicjlŸUfPaœW|Ènzd v¤fUdPjl«NnzibV xicj|O­©R)SUW 5×5 icW~nzdU`{aœicfP~aœW|h«NfUdP~aœjlnzd'j`‚wUšlnxacacW|ËnzdhvfUdPjl«NnzibV zibj|Ënx« × 100 w>nxjd‹aœ`JvxdP|'acSUW Wicibnzic`}vicW vxšl`cnW¨vxšlfŽvacW|nzd(aœSUjl`)zicjl|¯­‚Ê.jlzfUibW 遧`bSUn:¦}100 `)aœSUW icW~nzdP`baœibfU~acW|ˆvxdU| WÌPvx~aC«NfUdU~acjnzdÉ~nzd‹aœnxfUic`všnzdU¦}jlacSÉaœSUWšn<~–vacjnzd¥nx«)aœSPW0|Žvaœvˆw>nxjd‹aœ`­©ÊŽnziacSUW ~–vx`bW8nx« 5 × 5 |ŽvaœvCwynzjd‹aœ`JaœSPW8vx~~fUicvx~_hj`G¨zWi{_wyn<nziW¨zWdk?fŽvšjlaœvaœj®¨zWšl_C¦}SPjšW}«Nnzi w>nzjld‹aœ`aœSUWGicW~nzdU`{aœibfU~acW|«NfUdU~aœjnxdjl` k?fŽvxšljlaœvaœj®¨zWš®_5ŸyWacacWi

(49) ­  dªR vxŸUšlW$„<ÁacSUW 10×10 Wicibnzi§«Nnzi§jdU~icW–v`cjdPªd?fUVªŸyWi)nx«%|Žvaœvªw>nxjd‹aœ`$jl`§zj®¨zWdHvdU|0¦§W dUnaœj~W5vªV'nzdUnxacnzdUj~ |UW~icW–v`cWjdŸ>naœS(aœSUW V'W–vxdvxdP|HVhvp̆jVªfPVÍWicicnxic`­ .

(50) %. K. !#"%$&"%!. / /(-. + .-. /. -. / -. ! *). K. QP. ÷.

(51) À¹¸¼·x»µ <¹ ± ¬·<¹³œµ y·x» ªµ y¸ ô» :·x¸ ¼µ   .  .

(52)   

(53) . ƒ Š.  . 5.5. 12 Training data Exact Evaluated. 5.0. Training data Exact Evaluated. 11. 4.5 10 4.0 9. f. f. 3.5 3.0 2.5. 8. 7. 2.0 6 1.5 5. 1.0 0.5. 4 0.0. 0.2. 0.4. 0.6. 0.8. 1.0. 1.2. 1.4. 1.6. 1.8. 2.0. 0.0. 0.2. 0.4. 0.6. 0.8. 1.0. x. 1.2. 1.4. 1.6. 1.8. 2.0. 1.2. 1.4. 1.6. 1.8. 2.0. x. 1.0. 1.4 Training data Exact Evaluated. 1.2. 0.5. Training data Exact Evaluated. 1.0. 0.8 0.0 f. f. 0.6. 0.4 −0.5 0.2. 0.0. −1.0. −0.2. −1.5 0.0. 0.2. 0.4. 0.6. 0.8. 1.0. 1.2. 1.4. 1.6. 1.8. −0.4 0.0. 2.0. 0.2. 0.4. 0.6. 0.8. 1.0. Ê.jlzfUicW„ )ƒž aœW`ba}«NfUdU~aœjlnzdU`}icW~nzdU`{aœibfU~acW|H¦}j®aœSueÅ$ÊÂfU`cjldUHƒ–‰Ë|Uvavwynzjd‹aœ` x. 1M. x. K. N 5×5 6×6 7×7 8×8 9×9 10 × 10. §nzdU|¯­JdUnU­ [HWvxdWici [ˆvpÌWici ‡†­ Œ?‡†ƒ:‡ Pƒ „ ŒU­ ŒUƒ–W ƒ:„ ƒz­â‰‹Š z„ ‹ŠW ‰†ƒ P­ Œ‹ Šx xW ‰†ƒ ƒz­ z ‹„ ŒU­ zxW ƒ:„ P­®ƒ ‹‡ zxW ‰x‰ ƒz­ ‹„xz„z‡z„W ‰†ƒ ‰P­ z„x‰ z‰ ŒU­ ‹ŠW ƒ:„ ‡†­ ‡x‰ ‹Š†ƒ–W ‰x‰ ƒz­â‰‹‡z‡ ŒUƒ–W ‰†ƒ ‰P­â‹„zŠ „z„x ŒU­ Œ‹‰xW ƒ:„ P­ ‹Š ‹„ Wž ‰Pƒ ŒU­â‹Šz„pŒ?‡†ƒ–W ‰x‰ ‰P­ Œ?‡ xz‰xŒ Š†­â‰xŒzW ƒ:‡ P­ ‹‡ŒUƒzƒ–xWž ‰‹‡ ‡†­â‰Pƒ ŠzŠ<ƒ xWž ‰Pƒ ‰†­âŒUƒ–zz‹Š ƒz­ ŠW ªƒ „ ‡†­ Pƒ ‡<ƒ xWž ‰‹‡ ƒz­ ŒzŒ‹ ‹Š†ƒ–W´žº‰Pƒ R vxŸUšlW„ JueÅ$ÊÂicW`bfUšlac`)«Nnzie‡ ž uevx`bacicjlzjd0«NfUdP~aœjlnzd a. .  . . % . %. . . . M. PQP. (. RTS UWVXU. .   X%  %  % %      X% K. . . %. X. .

(54) ƒ. ³c·x¹¹  ² ®¶ O¹c·x² . Exact. 1.0. 1.0. 0.8. 0.8. 0.6. 0.6. 0.4. 0.4. 0.2. 0.2 y. y. Computed. 0.0. 0.0. −0.2. −0.2. −0.4. −0.4. −0.6. −0.6. −0.8. −0.8. −1.0 −1.0. −0.8. −0.6. −0.4. −0.2. 0.0. 0.2. 0.4. 0.6. 0.8. 1.0. x. 5×5. −1.0 −1.0. |Uvavwynzjd‹aœ`. −0.8. −0.6. −0.4. −0.2. 0.8. 0.6. 0.6. 0.4. 0.4. 0.2. 0.2 y. y. 0.8. 0.0. −0.2. −0.4. −0.4. −0.6. −0.6. −0.8. −0.8. −0.4. −0.2. 0.0. 0.4. 0.6. 0.8. 1.0. 0.2. 0.4. 0.6. 0.8. 1.0. 0.0. −0.2. −0.6. 0.2. Exact 1.0. −0.8. 0.0 x. Computed 1.0. −1.0 −1.0. 0.2. 0.4. 0.6. 0.8. 1.0. −1.0 −1.0. −0.8. −0.6. Ž| vaœvËwynzjld?ac` Ê.jzfPicW 5‡ ž uevx`bacicjxjdˆ«NfUdP~aœjlnzd¬icW~nzdU`{aœibfU~acW|Éjld ¦}jlaœSnzw†aœjV'j¢W|vabaœWd<fUvaœjlnzd0« vx~acnzi x. −0.4. −0.2. 0.0 x. 10 × 10. !M. K. X . 100 × 100. zibj|¬fU`cjldUueÅ$Ê. QP. ÷.

(55) À¹¸¼·x»µ <¹ ± ¬·<¹³œµ y·x» ªµ y¸ ô» :·x¸ ¼µ   .  .

(56)   

(57) . ƒ.  . X%. Ñ — Ï • Ó Ô Ð —  ˜Ô%—P”–—.  dacSUj`$acW`baÁŽ¦§W5av£xWvxWibn†|P_<dŽvVhjl~8|Žvaœv N|UiœvxË~n†W h~jWd?a vxdU|šjl«ôa§~n<W '~jlWd‹a C .«NnziJv pž ¦}jldU5¦}SUnz`cW°`cSŽvw>W}j`JwŽviœvxV'WacWicjl¢W|'jld'acWibVh`Jnx«yaœSUWe|Ujl`cwUšvx~WVhWd?ac` C nx«>‡x‰Z~nzd‹aœicnxšPwynzjd‹aœ` nx«yvxdÊ.Ê Ÿyn:Ì>­ÄR)SPW§¦}jdUZ`cSŽvxwyW$jl`.nzwPacjV'j¢W|CfP`cjdP8`cjlVhwUšlWÌ VhWaœSUn<|`cnaœSŽvpa°j®a)V'jdUjlVhjl¢W`GaœSUW ~nz`ba}«NfUdU~aœjlnzd ®ƒ !#"%$&". -. ). !. /. . d. # K. l. K. -$ &.   Cd Cl 4 J= + 10 · max 1 − ,0 C do C lo. ¡r `cWanx«¯„x‰z‰5|Žvaœv5w>nzjld‹aœ`‚jd R jl`JzWdUWiœvacW|'Ÿ‹_ËicfUdUdPjdU5aœSPW$Ê `bnzšl¨xWiGvxicnxfUdU| aœSUWnzwPacjVhvxšOwynzjd‹a Y jdaœSUW «Nnzšlšn:¦}jdUª¦§v–_ Y = Y + Y ÁQ¦}SPWicW Y ∈ R j`ev iœvxdU|PnzVͨxW~acnzieW–vx~Snx«%¦}SUnz`cWWšlWV'Wd‹aœ`)jl`$avx£Wd«NicnzV {−1, 0, +1} jdvËfUdUjl«NnxicV iœvxdU|PnzVVvdUdUWi­$ueÅ$Ê Vhn<|UWšl`evxicW~nzdP`baœibfU~acW|ˆ«Nnxi C vxdU| C fU`cjldUhacSUWCu}jwPwŽv VhWaœSUn<|0¦}SUj~Szj®¨zW`}acSUW vabaœWd?fŽvpaœjnxd0« vx~acnzic`}vx`e„ ­û‡x„ªvxdU| z‰ P­ Œ?„ibW`bw>W~aœj®¨zWšl_ ­.  dÈnzic|PWiCacnHaœW`baªacSUW(vx~~fUicvx~_Ànx«)acSUW~nzdU`bacicfU~aœW| V'n<|UWšéÁÄvH«NfUi{aœSUWiC`bWanx« ƒ–‰z‰ |Žvav¬wynzjd‹aœ`'j`ˏzWdUWicvaœW|ǟ‹_ icfUdUdPjdU¬aœSUW $Ê `bnzšl¨xWi acSUW`bW¤|Žvaœv¥wynzjd‹ac`vxibW avx£Wd¤v` Y = Y + Y ¦}SPWicWaœSUWWšlWV'Wd‹aœ`enx« Y vxibWfPdUjl«NnzibV iœvdU|UnzV d?fUVCŸ>Wic` «NicnzV (−0.5, +0.5) ­ÄʎnziÄaœSPW°|Uicvx~n<W '~jlWd‹a–Á?aœSUWev–¨zWiœvxxWZvxdP|Vhvp̆jVªfUV icWš›vacjl¨zW Wicibnzic`vxibW 2.78 × 10 vxdU| 1.10 × 10 icW`cwyW~acjl¨xWšl_xÁ†¦}SUjlšW)«NnziJaœSUWešj®«ôaJ~n<W '~jlWd‹a aœSUW_(vxibW 1.66 vxdP| 6.24 × 10 icW`cwyW~aœjl¨xWš®_z­JR)SUW`bW Wicibnzic`$vxicWZ¨xWi{_(`cVhvxšš × 10 jdU|Ujl~–vacjdUaœSUWvxwUwPicn–̆jVhvaœjlnzd0wyn ¦Wi}nx«Äu°Å§Ê§­ Ñ — Ï • Ó Ô Ð %—  é˜Ô%—†”:— R)SUj`8jl`Z`bjV'jš›vi$aœnacSUWªwUibW¨<jnzfP`8WÌPvxV'wUšWCŸUfPaZ¦}j®aœS |PW`cjlzd¤¨vxicjvxŸUšlW`­°r `cWa5nx« ‹Š ¤wynzjd‹aœ` 'j`zWdUWicvaœW| jld R fU`bjdU¬š›vpaœjdÉS?_<wyWib~fUŸyWH`cvxV'wUšjldU¤jdÈacSUWiœvxdPzW ­ R)SUW¬nzw†aœjV'j¢W|¡vpacaœWd?fŽvaœjlnzdÇ« vx~aœnzib`0«Nnzi C vxdU| C vxibW [Y − 50, Y + 50] «NnzfUdU|¬aœnŸ>Wƒz­ ‡x z‡vdU| ƒx­  ‰z‰(icW`bw>W~acjl¨zWšl_¥vxdP|¥acSUWh~nzdU|Uj®aœjlnzd©d?fUVªŸyWinx«acSUW ~n<W '~jlWd‹a‚Vhvaœibj®Ì jldu°Å§ÊH¦$v`‚‰P­ Œ‹‹„z‡xt 5‰ vxdU|ˉP­®ƒzƒ ‹„t ªƒ:‰eicW`cwyW~acjl¨xWšl_x­ à j®aœS aœSUWªnxwPaœjlVhjl¢W|¤vacacWd?fŽvacjnzd¤« vx~aœnziÁ>acSUWWibicnzi8n«jld‹aœWibw>nxš›vacjnzdnzd¥v0|Uj >WibWd‹a5`bWa nx« |Uvav5wynzjd‹aœ`Ħ§vx`J«NnzfUdU|acnŸyW°„†­®ƒ Š t.ž 5vdU|Hƒx­  ‡xt.ž 8icW`cwyW~aœjl¨xWš®_z­  d'nzic|UWi Ü ÚºÛ ÙJ.pøpÝáâÝÛ¼Ý Ýú ( à××Û%ù úéÛ Úbú Ý´á ÙbÙbø°ÖéÙ ù ( ÛÙ pùÙ{úÖ ÝÚbÛ¼ÝÙbúéø%Ù .ú ù á Ý´Ûéù –àxÙ{Ö Ú . xقúéÝÞ$à áâù .:Û%ÝGü Ù ×´ü†Û ÙbÞ á ÙbÝø}÷ Û¼×$à Öé× á Ù{Þ)ú¯ù ( Öé( ùûø°ø Ùºü ×Ö¼Þ)ÝÛ¼( ùâ× ( Ý ( ø°ÝÖé(Ù ( ×ÛÛ¼( Ý Ù ( ü ×Ö Ù ( ÙbּݴÛéù ( ( Û Ù‚Þ$ÙºÛ Ý´Þ$×:ø:Ù{á 20. M. ∗. ∗. r. d. K. ∗. r. −5. % %. . . −4. /. ∗. %l. . −5. -. *). . 20. r. r. −5. !#"%$&". K. 8. ∗. 8. %. d. l. X. %. /. .

(58). PQP. (. RTS UWVXU. /. .  U  . . . . .  . .  .  . . . . . .

(59) ‡x‰. ³c·x¹¹  ² ®¶ O¹c·x² . X . 1. 1 Cd Cl Optimized. 0.1. 0.01. 0.01. Error in Cl. Error in Cd. 0.1. 0.001. 0.001 0. 0.2. 0.4. 0.6. 0.8. 1. 1.2. 1.4. 1.6. 1.8. 2. 2.2. Ê.jzfPicWZŠ Är¨zWicvxzW8Wicibnzi§nx«jld‹aœWibw>nxš›vacjnzd'vx`)v«NfUdU~acjnzdhnx«%vabaœWd?fŽvpaœjnxd« vx~acnziJ«Nnzi ž vxWicn<|P_<dŽvxV'j~8|Žvpav Attenuation factor. M. K. aœn0`bWWªaœSPWC¨vxicjvaœjlnzdHn«Gvx~~fUiœvx~_ˆn«‚aœSUWªV'n<|UWš¦}jlacSˆaœSUWªvacacWd?fŽvacjnzdˆ« v~aœnxiÁ>¦W ~nzV'wUfPacW'acSUWWicicnxinx«$jd‹aœWicwynzš›vacjnzd©nxdÉaœSUWËaœW`baC|Žvav«Nnzi|Uj >WibWd‹avabaœWd<fUvaœjlnzd « vx~acnzic`%vxdU|wUšnaaœSUWV¾jd5¿ŽzfUibW$Š<­ R)SUWGa ¦§ne¨zWibaœjl~–vxš‹šljdUW`icWwPicW`bWd‹a.acSUWGnzwPaœjlVhjl¢W| vacacWd?fŽvacjnzd« vx~aœnzi­ ÃÀWe~vxd'`cWW}aœSUva‚aœSUW}V'jdUjlVªfUV Wibicnzi‚nx«>jd‹acWicwynzšvaœjlnzdªn<~~fPic` va8vd©vacacWd?fŽvacjnzdH« vx~acnzi°k?fUj®aœW~šnx`cWacnaœSPW¨vxšfPW`Z|PWaœWicV'jdUW|ˆ«NicnxV aœSUWu}jwPwŽv VhWaœSUn<|¯­ R)SUW u°Å§ÊÉVhWavxV'n<|UWšQ¦$v`}vxš`bnªfU`cW|acnª`cnxšl¨zW vª~nzdU`{aœiœvjdUW|(VhjldUjV'j¢vaœjlnzdwUicnxŸ†ž šWV `bfU~SHacSŽva C = C jd [Y − 40, Y + 40] min C ^<avxi{aœjldU«NibnzV-vC`cnxšfPacjnzd'nzŸPaœvxjdUW|¦}jlacS0vC`bjV'wUšW´Ì'VhWaœSUn<|! C = 0.01399 Á C = Á>aœSUWËV'WavVhn<|UWš%_<jWšl|UW|©acSUWª¨vxšfUW` C = 0.01365 vxdU| C = 0.31870 Á 0.31870 ¦}SUjšlWvdHW´ÌUv~a$Ê ~nxVhwUf†avacjnzdzj®¨zW` C = 0.01376 vxdU| C = 0.31847 ­§R)SUjl`  Ü ùûúà Ö¼× páâÙbÞ Ýú¯ú ×á Ùbø .pú ù (  Õ M. d. l. ∗. l0. ∗. 8. d. d. . K. . . .  . d. l. l. l. . QP. ÷.

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