Improving the focusing properties of SAR processors for wide-band and wide-beam low frequency imaging

Potsis, A; Reigber, A; Mittermayer, J; Moreira, A; Uzunoglou, N

dc.contributor.author	Potsis, A	en
dc.contributor.author	Reigber, A	en
dc.contributor.author	Mittermayer, J	en
dc.contributor.author	Moreira, A	en
dc.contributor.author	Uzunoglou, N	en
dc.date.accessioned	2014-03-01T02:41:54Z
dc.date.available	2014-03-01T02:41:54Z
dc.date.issued	2001	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/30660
dc.subject	Data Collection	en
dc.subject	Error Compensation	en
dc.subject	High Resolution	en
dc.subject	Object Detection	en
dc.subject	Power Method	en
dc.subject	Sar Image	en
dc.subject	Low Frequency	en
dc.subject	Wide Swath	en
dc.subject.other	Algorithms	en
dc.subject.other	Bandwidth	en
dc.subject.other	Computer simulation	en
dc.subject.other	Error compensation	en
dc.subject.other	Focusing	en
dc.subject.other	Radar imaging	en
dc.subject.other	Transfer functions	en
dc.subject.other	Frequency imaging	en
dc.subject.other	Object detection	en
dc.subject.other	Synthetic aperture radar	en
dc.title	Improving the focusing properties of SAR processors for wide-band and wide-beam low frequency imaging	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1109/IGARSS.2001.978250	en
heal.identifier.secondary	http://dx.doi.org/10.1109/IGARSS.2001.978250	en
heal.publicationDate	2001	en
heal.abstract	An increasing amount of interest has been evolved in VHF/UHF SAR applications. These radars have proven to be a very powerful method for underground and obscured object detection as well as for parameter retrieval purposes. For new upcoming applications, high-resolution VHF/UHF SAR imaging is an important task, but cannot be achieved easily with conventional SAR processing techniques. A new algorithm is presented in this paper, which modifies the azimuth compression step of the Extended Chirp Scaling (ECS) algorithm [1]. It provides high azimuth resolution also for high squint or wide swath. Additionally, the effect of strong motion errors in wide-beam azimuth processing is analysed and discussed, using simulated data as well as data collected by the airborne experimental SAR system of DLR (E-SAR) in P-band. In this context, a sub-aperture approach for motion error compensation in wide-beam azimuth processing is also presented.	en
heal.journalName	International Geoscience and Remote Sensing Symposium (IGARSS)	en
dc.identifier.doi	10.1109/IGARSS.2001.978250	en
dc.identifier.volume	7	en
dc.identifier.spage	3047	en
dc.identifier.epage	3049	en