Submitted on: 21 February 2007.
Revised on: 15 March 2007.
Accepted on: 09 May 2007.
___________________IET Science Measurement & Technology
Submitted on: 24 December 1998.
Revised on: 13 April 1999.
Accepted on: 24 April 1999.
___________________IET Science Measurement & Technology
Submitted on: 28 February 2000.
Revised on: 27 April 2000.
Accepted on: 08 June 2000.
___________________IET Science Measurement & Technology
Submitted on: 23 September 2002.
Revised on: 14 November 2002.
Accepted on: 25 December 2002.
___________________IET Science Measurement & Technology
Submitted on: 12 September 2012.
Revised on: 01 November 2012.
Accepted on: 25 November 2012.
___________________IET Science Measurement & Technology
Submitted on: 12 April 2014.
Revised on: 07 May 2014.
Accepted on: 28 June 2014.
___________________IET Science Measurement & Technology
http://reply.papertrans.cn/2/122/12191/12191-27.png
Submitted on: 17 July 2005.
Revised on: 05 November 2005.
Accepted on: 21 December 2005.
___________________IET Science Measurement & Technology
http://reply.papertrans.cn/2/122/12191/12191-29.png
Submitted on: 15 May 2016.
Revised on: 09 August 2016.
Accepted on: 07 September 2016.
___________________IET Science Measurement & Technology