High quality spotlight SAR processing algorithm designed for LightSAR mission

Author

Jin, Michael Y.

Author_Institution

Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA

Volume

1

fYear

1997

fDate

3-8 Aug 1997

Firstpage

477

Abstract

A high quality spotlight SAR processing algorithm is presented. In this algorithm, subband images of the radar illuminated spot are processed using well known strip mode processing algorithms. A full resolution image is then formed by (1) merging the spectra of subband images into a full band spectrum, and (2) taking an inverse FFT. Advantages of this algorithm include (1) higher image quality, (2) higher processing throughput rate, and (3) lower S/W development cost. The image quality achieved by this algorithm is better than that previously achieved by the backprojection algorithm. The fine image quality is demonstrated by the SIR-C spotlight SAR images

Keywords

fast Fourier transforms; geophysical signal processing; geophysical techniques; image processing; radar imaging; remote sensing by radar; spaceborne radar; synthetic aperture radar; LightSAR; fast Fourier transform; geophysical measurement technique; high quality spotlight processing algorithm; image processing; inverse FFT; land surface; radar imaging; radar remote sensing; spaceborne radar; spotlight SAR; strip mode; subband image; synthetic aperture radar; terrain mapping; Algorithm design and analysis; Computed tomography; Image quality; Image resolution; Process design; Radar imaging; Strips; Synthetic aperture radar; Throughput; X-ray imaging;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing, 1997. IGARSS '97. Remote Sensing - A Scientific Vision for Sustainable Development., 1997 IEEE International

Print_ISBN

0-7803-3836-7

Type

conf

DOI

10.1109/IGARSS.1997.615920

Filename

615920