TY - JOUR
T1 - Unambiguous Recovery of Multistatic SAR Datafor Nonzero Cross Track Baseline Case
AU - Dogan, O.
AU - Uysal, Faruk
AU - Lopez Dekker, J.F.
PY - 2020
Y1 - 2020
N2 - A wide-swath synthetic aperture radar (SAR) image is known to be achievable by merging multistatic aliased data that is collected with an appropriate along-track displacement. However, in terms of both flexibility requirements like potentiality of both along-track and cross-track (XT) interferometry and design requirements like orbital safety, etc., a XT baseline is not only demanded but also unavoidable. In this work, a method is proposed in order to merge SAR data to recover the Doppler spectrum unambiguously for the nonzero XT baseline case. The algorithm is compared and validated by simulating an azimuth invariant multistatic SAR satellite constellation. The results are promising in terms of dealing with XT baselines.
AB - A wide-swath synthetic aperture radar (SAR) image is known to be achievable by merging multistatic aliased data that is collected with an appropriate along-track displacement. However, in terms of both flexibility requirements like potentiality of both along-track and cross-track (XT) interferometry and design requirements like orbital safety, etc., a XT baseline is not only demanded but also unavoidable. In this work, a method is proposed in order to merge SAR data to recover the Doppler spectrum unambiguously for the nonzero XT baseline case. The algorithm is compared and validated by simulating an azimuth invariant multistatic SAR satellite constellation. The results are promising in terms of dealing with XT baselines.
KW - Bistatic synthetic aperture radar (SAR)
KW - Multistatic SAR image processing
KW - Radar signal processing
KW - SAR constellation
UR - http://www.scopus.com/inward/record.url?scp=85106001444&partnerID=8YFLogxK
U2 - 10.1109/LGRS.2020.3021759
DO - 10.1109/LGRS.2020.3021759
M3 - Article
SN - 1545-598X
VL - 19
JO - IEEE Geoscience and Remote Sensing Letters
JF - IEEE Geoscience and Remote Sensing Letters
ER -