Evaluation of calibration methods for a helicopter-borne microwave scatterometer
作者:
M. BÉNALLÈGUE,
O. TACONET,
D. VIDAL-MADJAR,
F. BAUDIN,
P. LANCELIN,
G. LAURENT,
期刊:
International Journal of Remote Sensing
(Taylor Available online 1995)
卷期:
Volume 16,
issue 2
页码: 217-226
ISSN:0143-1161
年代: 1995
DOI:10.1080/01431169508954391
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
The French frequency modulated continuous waves (FMCW) scatterometer ERASME mounted on small helicopter or aircraft has been designed as dualfrequency (CandXbands) and dualpolarization (HH, VV) to investigate simultaneously the vegetation and the soil responses in radar backscattering. It is operated as a forward looking radar with a large elevation beamwidth (± 10° at 3 db) to observe easily the same surface target over a large range of incidence angles during a single flight. By this ability, ERASME is a complementary research tool for intercalibration of airborne and spaceborne imaging Synthetic Aperture Radars like Radarsat and ASAR and has to be well calibrated in every configuration, both absolutely and relatively for comparisons at different incidence angles.
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