DocumentCode :
315147
Title :
Real time synthetic aperture radar (SAR) preprocessor design via three-dimensional modular filtering architecture
Author :
Lim, Chan Hian ; Soon, Yeo Tat
Author_Institution :
Dept. of Electr. Eng., Nat. Univ. of Singapore, Singapore
Volume :
1
fYear :
1997
fDate :
3-8 Aug 1997
Firstpage :
487
Abstract :
Synthetic aperture radar (SAR) systems are increasingly demanding for real real-time performance. As part of an effort to develop a real-time range-Doppler digital SAR processor to produce image maps of the scanned area immediately as raw data are collected, this paper describes the conceptual architecture design for a high-speed front-end video pre-filtering. The evolved architecture consists of richly interconnected planes of novelly-adapted Modified Transverse FIR parallel tapped delay elements. Both the range and azimuth prefilterings are performed simultaneously in a continuous input-output flow without the need to worry about corner turning caused by azimuth preprocessing on data samples that are collected in the range direction
Keywords :
digital filters; filters; geophysical equipment; geophysical signal processing; geophysical techniques; image processing equipment; radar equipment; radar imaging; real-time systems; remote sensing by radar; synthetic aperture radar; Modified Transverse FIR parallel tapped delay elements; SAR; azimuth prefiltering; conceptual architecture design; digital filter; geophysical measurement technique; high-speed front-end video pre-filtering; image processing equipment; input-output flow; land surface; preprocessor design; radar imaging; radar remote sensing; range prefiltering; range-Doppler digital SAR processor; real time system; synthetic aperture radar; terrain mapping; three-dimensional modular filtering architecture; Aperture antennas; Azimuth; Delay; Filtering; Finite impulse response filter; Radar antennas; Radar imaging; Radar signal processing; Surveillance; Synthetic aperture radar;
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.1997.615923
Filename :
615923
Link To Document :
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