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EURASIP Journal on Advances in Signal Processing
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A Three-Dimensional Range Migration Algorithm for Downward-Looking 3D-SAR with Single-Transmitting and Multiple-Receiving Linear Array Antennas

EURASIP Journal on Advances in Signal Processing volume 2010, Article number: 957916 (2010) Cite this article

Abstract

This paper presents a three-dimensional (3D) range migration algorithm (RMA) suitable for downward-looking 3D-SAR with single-transmitting and multiple-receiving linear array antennas (STMR-LAA). As the round-trip range equation in 3D-SAR with STMR-LAA is a dual square root, the signal spectrum in 3D wavenumber domain contains nonlinear phase terms besides constant and linear phase terms. In this paper, the approximate expression of the signal spectrum is derived by expanding the implicit phase term to its Taylor series. Then the constant and nonlinear phase terms are calculated and compensated by multiplying the wavenumber filters. Finally, a 3D wavenumber mapping is proposed to make the signal evenly sampled in 3D wavenumber domain. Some simulating results are presented to validate the correctness of the analysis and the feasibility of the algorithm. In addition, the required accuracy on the platform position is analyzed at the end of the paper.

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Authors and Affiliations

  1. The National Key Laboratory of Microwave Imaging Technology (MITL), P.O. Box 2702, Beijing, 100190, China

    Lei Du, Yanping Wang, Wen Hong, Weixian Tan & Yirong Wu

  2. Institute of Electronics, Chinese Academy of Sciences (IECAS), P.O. Box 2702, Beijing, 100190, China

    Lei Du, Yanping Wang, Wen Hong, Weixian Tan & Yirong Wu

  3. The Graduate University of Chinese Academy of Sciences (GUCAS), Beijing, 100049, China

    Lei Du

Authors
  1. Lei Du
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  2. Yanping Wang
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  3. Wen Hong
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  4. Weixian Tan
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  5. Yirong Wu
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Corresponding author

Correspondence to Yanping Wang.

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Open Access This article is distributed under the terms of the Creative Commons Attribution 2.0 International License ( https://creativecommons.org/licenses/by/2.0 ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Du, L., Wang, Y., Hong, W. et al. A Three-Dimensional Range Migration Algorithm for Downward-Looking 3D-SAR with Single-Transmitting and Multiple-Receiving Linear Array Antennas. EURASIP J. Adv. Signal Process. 2010, 957916 (2010). https://doi.org/10.1155/2010/957916

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  • DOI: https://doi.org/10.1155/2010/957916

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