·852 北京科技大学学报 第34卷 neural networks.IEEE Trans Neural Netcorks,2005,16 (1) (79):1281 279 [11]Li T,Fei S M.Exponential state estimation for recurrent neural [8]He Y,Wang QC,Wu M,et al.Delay-dependent state estimation networks with distributed delays.Neurocomputing,2007,71(1- for delayed neural networks.IEEE Trans Neural Netcorks,2006, 3):428 17(4):1077 [12]Li T,Fei S M,Zhu Q.Design of exponential state estimator for 9]Liu Y R,Wang Z D,Liu X H.Design of exponential state estima- neural networks with distributed delays.Nonlinear Anal Real tors for neural networks with mixed time delays.Phys Lett A, World Appl,2009,10(2):1229 2007,364(5):401 [13]Gu K Q.An integral inequality in the stability problem of time- [10]Wang H W,Song Q K.State estimation for neural networks with delay systems//Proceedings of 39th IEEE Conference on Decision mixed interval time-varying delays.Neurocomputing,2010,73 and Control.Sydney,2000:2805北 京 科 技 大 学 学 报 第 34 卷 neural networks． IEEE Trans Neural Networks，2005，16 ( 1 ) : 279 ［8］ He Y，Wang Q G，Wu M，et al． Delay-dependent state estimation for delayed neural networks． IEEE Trans Neural Networks，2006， 17( 4) : 1077 ［9］ Liu Y R，Wang Z D，Liu X H． Design of exponential state estima￾tors for neural networks with mixed time delays． Phys Lett A， 2007，364( 5) : 401 ［10］ Wang H W，Song Q K． State estimation for neural networks with mixed interval time-varying delays． Neurocomputing，2010，73 ( 7-9) : 1281 ［11］ Li T，Fei S M． Exponential state estimation for recurrent neural networks with distributed delays． Neurocomputing，2007，71( 1- 3) : 428 ［12］ Li T，Fei S M，Zhu Q． Design of exponential state estimator for neural networks with distributed delays． Nonlinear Anal Real World Appl，2009，10( 2) : 1229 ［13］ Gu K Q． An integral inequality in the stability problem of time￾delay systems/ /Proceedings of 39th IEEE Conference on Decision and Control． Sydney，2000: 2805 ·852·