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A High Resolution Wide Swath SAR method based on intra-pulse null steering and MIMO

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Journal of Electronics (China)

Abstract

High Resolution Wide Swath (HRWS) Synthetic Aperture Radar (SAR) often suffers from low Signal-to-Noise Ratio (SNR) due to small transmitting antenna, especially in phased array antenna systems. Digital Beam Forming (DBF) based on Single Input and Multiple Output (SIMO) achieves receiving array gain at the cost of increasing data rate. This letter proposes a new HRWS SAR method, which employs intra-pulse null steering to get receiving gain in elevation and decrease the data rate, and Multiple Input and Multiple Output (MIMO) using Space-Time Block Coding (STBC) in azimuth to get transmitting gain and receiving array gain simultaneously. The feasibility is verified by deduction and simulations.

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Authors and Affiliations

  1. Institute of Electronics, Chinese Academy of Sciences, Beijing, 100190, China

    Longyong Chen, Xingdong Liang & Chibiao Ding

  2. Graduate University of Chinese Academy of Sciences, Beijing, 100049, China

    Longyong Chen

Authors
  1. Longyong Chen
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  2. Xingdong Liang
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  3. Chibiao Ding
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Corresponding author

Correspondence to Longyong Chen.

Additional information

Communication author: Chen Longyong, born in 1979, male, Ph.D.

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Chen, L., Liang, X. & Ding, C. A High Resolution Wide Swath SAR method based on intra-pulse null steering and MIMO. J. Electron.(China) 25, 813–816 (2008). https://doi.org/10.1007/s11767-008-0053-4

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  • DOI: https://doi.org/10.1007/s11767-008-0053-4

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