Orbital effects on ERS-1 SAR temporal backscatter profiles of agricultural crops
作者:
Y BAN,
期刊:
International Journal of Remote Sensing
(Taylor Available online 1998)
卷期:
Volume 19,
issue 17
页码: 3465-3470
ISSN:0143-1161
年代: 1998
DOI:10.1080/014311698214145
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Multi-temporal radar backscatter characteristics of crops and their underlying soils were analysed for an agricultural area in south-western Ontario, Canada using nine dates of ERS-1 SAR imagery acquired during the 1993 growing season. From the calibrated data, SAR temporal backscatter profiles were generated for each crop type. The results indicate that small changes in incidence-angle can have strong impacts on radar backscatter. Thus, attention must be given to local incidence-angle effects when using ERS-1 SAR data,especially when comparing backscatter coefficients of the same area from different scenes or different areas within the same scene.
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