A stripmap to spotlight data converting algorithm

Author

Yeo, T.S. ; Lu, Y.H. ; Zhang, C.B.

Author_Institution

Dept. of Electr. Eng., Nat. Univ. of Singapore

Volume

2

fYear

1998

fDate

6-10 Jul 1998

Firstpage

1168

Abstract

In this paper, a data converting algorithm (DCA) that is capable of transforming synthetic aperture radar (SAR) data collected in strip-mapping mode to spotlight mode is presented. Spotlight image formation algorithms (IFA) such as the range migration algorithm (RMA) and the polar format algorithm can then process the converted SAR data. The principle behind the DCA is to compensate for the difference in the spectral properties of the Doppler spectrum between the two modes of SAR imaging. The compensating equation is derived from the difference of the phase of the demodulating signal equations for the two different modes. The DCA has been implemented on a SUN workstation and used to process real (DLR ESAR-2) data. The results of the simulations are presented

Keywords

geophysical signal processing; geophysical techniques; radar imaging; remote sensing by radar; synthetic aperture radar; SAR; SAR imaging; compensating equation; data converting algorithm; geophysical measurement technique; image formation algorithm; land surface; polar format algorithm; radar imaging; radar remote sensing; range migration algorithm; spotlight mode; strip-mapping mode; stripmap to spotlight; synthetic aperture radar; terrain mapping; Azimuth; Band pass filters; Filtering; Frequency domain analysis; Geometry; Image analysis; Image converters; Layout; Signal processing; Synthetic aperture radar;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium Proceedings, 1998. IGARSS '98. 1998 IEEE International

Conference_Location

Seattle, WA

Print_ISBN

0-7803-4403-0

Type

conf

DOI

10.1109/IGARSS.1998.699707

Filename

699707