Study on along-track motion compensation for FMCW SAR

Since the duty cycle is one for frequency modulated continuous wave (FMCW) synthetic aperture radar (SAR) and the approach of pulse repeat frequency (PRF) online adjustment could not be adopted any more, a new approach of compensating the along track motion error is proposed without computational ta...

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Bibliographic Details
Published inIET Conference Proceedings p. B0107
Main Authors Jia Gaowei, Chang Wenge
Format Conference Proceeding
LanguageEnglish
Published Stevenage, UK IET 2013
The Institution of Engineering & Technology
Subjects
Interpolation and function approximation (numerical analysis)
Optical, image and video signal processing
Radar equipment, systems and applications
synthetic aperture radar
interpolation
PRF
computational taxing interpolation
motion estimation
object tracking
radar imaging
frequency modulated continuous wave
motion error tracking
pulse repeat frequency
motion compensation tracking
FMCW SAR
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Abstract Since the duty cycle is one for frequency modulated continuous wave (FMCW) synthetic aperture radar (SAR) and the approach of pulse repeat frequency (PRF) online adjustment could not be adopted any more, a new approach of compensating the along track motion error is proposed without computational taxing interpolation. The distortion of SAR image derived from motion error is analyzed and the motion error is separated into inter-pulse and intra pulse error. The flow chart of compensation along track is eventually presented in this paper. Simulation result shows the method proposed is effective and practical. (5 pages)
AbstractList Since the duty cycle is one for frequency modulated continuous wave (FMCW) synthetic aperture radar (SAR) and the approach of pulse repeat frequency (PRF) online adjustment could not be adopted any more, a new approach of compensating the along track motion error is proposed without computational taxing interpolation. The distortion of SAR image derived from motion error is analyzed and the motion error is separated into inter-pulse and intra pulse error. The flow chart of compensation along track is eventually presented in this paper. Simulation result shows the method proposed is effective and practical. (5 pages)
Author Jia Gaowei
Chang Wenge
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Keywords synthetic aperture radar
interpolation
PRF
computational taxing interpolation
motion estimation
object tracking
radar imaging
frequency modulated continuous wave
motion error tracking
pulse repeat frequency
motion compensation tracking
FMCW SAR
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SubjectTerms Interpolation and function approximation (numerical analysis)
Optical, image and video signal processing
Radar equipment, systems and applications
Title Study on along-track motion compensation for FMCW SAR
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