Title :
High quality spotlight SAR processing algorithm designed for LightSAR mission
Author_Institution :
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
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;
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
DOI :
10.1109/IGARSS.1997.615920
