Volume 25 Issue 4
Apr.  1999
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Li Liwei, Jia Hongjiang, Asif Raza, et al. Research on Problems of Motion Compensationin Chirp-scaling Algorithm[J]. Journal of Beijing University of Aeronautics and Astronautics, 1999, 25(4): 398-401. (in Chinese)
Citation: Li Liwei, Jia Hongjiang, Asif Raza, et al. Research on Problems of Motion Compensationin Chirp-scaling Algorithm[J]. Journal of Beijing University of Aeronautics and Astronautics, 1999, 25(4): 398-401. (in Chinese)

Research on Problems of Motion Compensationin Chirp-scaling Algorithm

  • Received Date: 20 Feb 1998
  • Publish Date: 30 Apr 1999
  • The chirp-scaling algorithm(CSA) performs better than the range-Doppler algorithm(RDA) under deep squint angle and large imaging scene by avoiding interpolation. For SAR image formation process, autofocus algorithm is usually necessary, but most current autofocus algorithms are based on RDA. This paper presents an approach to combine the autofocus algorithm with CSA which will be more practical. This paper also suggests a method to combine motion compensation based on moving sensor and autofocus algorithm based on radar data with CSA. This method is very suitable for high resolution airborne SAR.

     

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