L (W ,λ)=E ∣∣H Ws +n −s ∣∣+λTr(W W )−P n ,s [H 2][H ]
=E H W −I s +n H W −I s +n +λTr(W W )−P n ,s [((H K ))H
((H K ))][H ]=Tr H W −I H W −I +K +λTr(W W )−P ((H K )H (H K ))[H ]
=Tr W HH W −Tr W H −Tr H W +2K +λTr(W W )−P (H H )(H )(H )[H ]
=∂W ∗∂L
电路板测试台电量控制HH W −H H +λW =0
观测值W =HH +λI H
(H N )−1=H H H +λI (H K )
−1A +ABA =A (I +BA )=(I +AB )A
(I +BA )A =−1−1A (I +−1AB )−1
A A (I +BA )=−1(I +A
数字高清网络摄像机B )A
−1λ=opt P /K
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