NDLI: A study of linear approximation techniques for sar azimuth processing

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A study of linear approximation techniques for sar azimuth processing

Content Provider	NASA Technical Reports Server (NTRS)
Author	Liu, B. Perry, R. P. Martinson, L. W.
Copyright Year	1979
Description	The application of the step transform subarray processing techniques to synthetic aperture radar (SAR) was studied. The subarray technique permits the application of efficient digital transform computational techniques such as the fast Fourier transform to be applied while offering an effective tool for range migration compensation. Range migration compensation is applied at the subarray level, and with the subarray size based on worst case range migration conditions, a minimum control system is achieved. A baseline processor was designed for a four-look SAR system covering approximately 4096 by 4096 SAR sample field every 2.5 seconds. Implementation of the baseline system was projected using advanced low power technologies. A 20 swath is implemented with approximately 1000 circuits having a power dissipation of from 70 to 195 watts. The baseline batch step transform processor is compared to a continuous strip processor, and variations of the baseline are developed for a wide range of SAR parameters.
File Size	2671889
Page Count	79
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19790012128
Archival Resource Key	ark:/13960/t2j727z4v
Language	English
Publisher Date	1979-02-01
Access Restriction	Open
Subject Keyword	Communications And Radar Computer Programming Fourier Transformation Approximation Circuits Imagery Rangefinding Algorithms Azimuth Computation Digital Techniques Signal Processing Linear Equations Satellite-borne Radar Synthetic Aperture Radar Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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