Submitted on: 28 July 2003.
Revised on: 17 November 2003.
Accepted on: 02 December 2003.
___________________IEEE Geoscience and Remote Sensing Letters
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Submitted on: 12 September 2007.
Revised on: 03 January 2008.
Accepted on: 23 January 2008.
___________________IEEE Geoscience and Remote Sensing Letters
Submitted on: 05 November 2014.
Revised on: 22 December 2014.
Accepted on: 14 January 2015.
___________________IEEE Geoscience and Remote Sensing Letters
Submitted on: 26 September 2008.
Revised on: 16 January 2009.
Accepted on: 20 February 2009.
___________________IEEE Geoscience and Remote Sensing Letters