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Scilabヘルプ >> CACSD > Model Transformation > arhnk

arhnk

ハンケルノルム近似

呼出し手順

[slm]=arhnk(sl,ord,[tol])

引数

sl

線形システム (syslin リスト)

ord

整数, 近似の次数

tol

equil1におけるランク近似の閾値

説明

行列[A,B,C,D]で定義される 安定な連続時間線形システムslの最適ハンケルノルム近似 slmを計算します.

A=diag([-1,-2,-3,-4,-5]);B=rand(5,1);C=rand(1,5);
sl=syslin('c',A,B,C);
slapprox=arhnk(sl,2);
[nk,W]=hankelsv(sl);nk
[nkred,Wred]=hankelsv(slapprox);nkred

参照

  • equil — 対称行列の対の平衡
  • equil1 — 行列の平衡 (非負定) の組
  • hankelsv — ハンケル特異値
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