jgg     2014 34 (1):  135-138    ISSN: 0412-1961  CN: 21-1139/TG COMPARISON ANALYSIS OF SINGLE CHANNEL INDEPENDENT  COMPONENT ALGORITHMS 1)Department of Surveying Engineering & Remote Sensing Science，CSU，Changsha 410083 2)Shanghai Astronomy Observatory，Chinese Academy of Science，Shanghai 200030 3)College of Resources & Environment，Hunan Agricultural University，Changsha 410128 Received: 2013-06-04  Revised: null  Online: 2014-01-23 Supporting info