منابع مشابه
Improved SAR Motion Compensation without Interpolation
Motion compensation is an important part of SAR processing for high resolution airborne sensors, such as those flown on UAS’s. The non-ideal motion of the platform results in degraded image quality, but for known motion, corrections can be made. Traditional motion compensation requires a computationally costly interpolation step to correct translational motion greater than a single range bin. T...
متن کاملImproved Topography- and Aperture- Dependent Motion Compensation for Airborne Sar
Synthetic Aperture Radar (SAR) is a microwave remote sensing sensor mounted on aircrafts or satellites, which allows obtaining high-resolution images of the observed scene [1]. In this paper we focus our attention on airborne SAR, whose raw data, in contrast to the spaceborne case, are affected by motion errors. More specifically, in airborne systems, the presence of atmospheric turbulence affe...
متن کاملMotion Compensation Based on Signal Processing Method for Airborne SAR
In the synthetic aperture radar (SAR) system, the motion error is the main phase error sources and the motion compensation is very important. The phase gradient autofocus (PGA) is a state of art technique for phase error correction of SAR. It exploits the redundancy of the phase-error information among range bins by selecting the strongest scatter for each range bin and synthesizes them. The mo...
متن کاملImproved Motion Compensation for Wide- Beam Wide-swath Airborne Sar
In order to gain consistent focusing quality all over the imaging region for wide-beam wide-swath airborne synthetic aperture radar (SAR), higher motion compensation (MoCo) accuracy at the edge of the swath is needed. In this letter, an improved MoCo approach is proposed, and its performance is validated by using simulated data, as well as real data collected by a P-band SAR system.
متن کاملWavenumber Domain SAR Focusing with Integrated Motion Compensation
In this paper a new SAR data processing algorithm denoted with Extended Omega-K (EOK) is analytically presented and formulated. EOK algorithm combines the advantages of the high accurate focusing of the wavenumber domain algorithms with high precision motion compensation. The new EOK algorithm integrates a two-step range adaptive motion compensation correction in the general formulation of the ...
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ژورنال
عنوان ژورنال: The Journal of Korean Institute of Electromagnetic Engineering and Science
سال: 2011
ISSN: 1226-3133
DOI: 10.5515/kjkiees.2011.22.1.016