[1] Dayalbagh Educational Institute,
[2] Dayalbagh,undefined
[3] Agra (UP),undefined
[4] India 282005 e-mail: dei@sancharnet.in Fax: 91-562-281226,undefined
[5] Department of Electrical Engineering,undefined
[6] Indian Institute of Technology,undefined
[7] Kanpur (UP),undefined
[8] India 208016 e-mail: Kalra@iit.ac.in,undefined