Submitted on: 10 December 2000.
Revised on: 15 January 2001.
Accepted on: 18 February 2001.
___________________IET Circuits Devices & Systems
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Submitted on: 19 June 2011.
Revised on: 21 August 2011.
Accepted on: 06 September 2011.
___________________IET Circuits Devices & Systems
http://reply.papertrans.cn/2/122/12147/12147-14.png
Submitted on: 03 December 2005.
Revised on: 06 March 2006.
Accepted on: 04 April 2006.
___________________IET Circuits Devices & Systems
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http://reply.papertrans.cn/2/122/12147/12147-17.png
Submitted on: 13 February 2003.
Revised on: 20 April 2003.
Accepted on: 11 June 2003.
___________________IET Circuits Devices & Systems
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Submitted on: 06 September 2003.
Revised on: 24 October 2003.
Accepted on: 11 December 2003.
___________________IET Circuits Devices & Systems