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Unparallel trajectory bistatic spotlight SAR imaging

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Abstract

A new approach for unparallel trajectory bistatic spotlight SAR imaging is proposed. The approach utilizes the concept of instantaneous Doppler wavenumber and introduces two variants, the sum-range and subtraction-range, to develop the 2D frequency analytical formula. Based on the assumption of plane wavefront, the transmitting and receiving Doppler are separated and formulated via series reversion. And frequency scaling is applied to focus image. The algorithm is with high computational efficiency, and provides well focus for limited scene imaging. Simulation result confirms the validity of the approach.

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Authors and Affiliations

  1. Key Laboratory for Radar Signal Processing, Xidian University, Xi’an, 710071, China

    Lei Zhang, Wei Jing, MengDao Xing & Zheng Bao

Authors
  1. Lei Zhang
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  2. Wei Jing
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  3. MengDao Xing
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  4. Zheng Bao
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Corresponding author

Correspondence to Lei Zhang.

Additional information

Supported by the National Natural Science Foundation of China (Grant No. 60502044) and Program for New Century Excellent Talents in University (Grant No. NCET-06-0861)

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Zhang, L., Jing, W., Xing, M. et al. Unparallel trajectory bistatic spotlight SAR imaging. Sci. China Ser. F-Inf. Sci. 52, 91–99 (2009). https://doi.org/10.1007/s11432-009-0012-1

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  • DOI: https://doi.org/10.1007/s11432-009-0012-1

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