Small Satellite Multi-Channel SAR Unambiguous Imaging Based on Nonuniform Sampling

YANG Feng-feng;WANG Min;LIANG Dian-nong

ACTA ELECTRONICA SINICA ›› 2007, Vol. 35 ›› Issue (9) : 1754-1756.

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ACTA ELECTRONICA SINICA ›› 2007, Vol. 35 ›› Issue (9) : 1754-1756.
论文

Small Satellite Multi-Channel SAR Unambiguous Imaging Based on Nonuniform Sampling

  • YANG Feng-feng, WANG Min, LIANG Dian-nong
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Abstract

Small satellite radar dissatisfies the minimum antenna area constraint.Unambiguous SAR imaging of a wide ground area with high azimuth resolution is a contradiction.Under the generalized sampling theorems,nonuniform samples of multiple receiving channels uniquely determine the unambiguous wide bandwidth-limitd signal.A fine resolution unambiguous SAR image can acquired with interpolation.Compared with the array signal processing algorithm for the same purpose,the interpolation algorithm operates more easy and efficiently with high performance.

Key words

small satellite / SAR / solve ambiguity / nonuniform sampling

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YANG Feng-feng;WANG Min;LIANG Dian-nong. Small Satellite Multi-Channel SAR Unambiguous Imaging Based on Nonuniform Sampling[J]. Acta Electronica Sinica, 2007, 35(9): 1754-1756.
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