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      Research on Overlapped Subaperture Real-time Imaing Algorithm for Pulse Compression Airborne Strip SAR System

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          Abstract

          A high-resolution real-time subaperture imaing formation for range direction pulse compression airborne strip Synthetic Aperture Radar(SAR) system is presented. It can be used in no dechirp strip SAR system. By pulse compression in range direction and Overlapped Subaperture Algorithm(OSA) in azimuth direction this algorithm can compensate the range-azimuth cross error and the space variant phase error. In this study, first strip SAR geometry is analyzed and the strip SAR model is derived, and then the processing flow of OSA for range pulse compression strip SAR system is described in detail. Computation load, data storage and limitations of patch are analyzed then.The point-target simulations and live data processing results show the proposed approach is feasible and effective.

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          Author and article information

          Journal
          Journal of Radars
          Chinese Academy of Sciences
          01 April 2015
          : 4
          : 2
          : 199-208
          Affiliations
          [1 ] Institute of Electronics, Chinese Academy of Sciences
          Article
          61d3f7f5841f41d29e626bbd43c0e49b
          10.12000/JR14126

          This work is licensed under a Creative Commons Attribution 4.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

          Categories
          Technology (General)
          T1-995

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