An Imaging Algorithm for Space-borne SAR Based on Range Walk Correction

Liu Ji-bang; Han Song

doi:10.3724/SP.J.1146.2006.01085

Volume 30 Issue 2

Jan. 2011

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Article Navigation > Journal of Electronics & Information Technology > 2008 > 30(2): 322-325

Liu Ji-bang, Han Song. An Imaging Algorithm for Space-borne SAR Based on Range Walk Correction[J]. Journal of Electronics & Information Technology, 2008, 30(2): 322-325. doi: 10.3724/SP.J.1146.2006.01085

Citation:

Liu Ji-bang, Han Song. An Imaging Algorithm for Space-borne SAR Based on Range Walk Correction[J]. Journal of Electronics & Information Technology, 2008, 30(2): 322-325. doi: 10.3724/SP.J.1146.2006.01085

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An Imaging Algorithm for Space-borne SAR Based on Range Walk Correction

doi: 10.3724/SP.J.1146.2006.01085

Liu Ji-bang^{①②;韩松},
Han Song

Received Date: 2006-07-20
Rev Recd Date: 2007-04-09
Publish Date: 2008-02-19

Abstract

Abstract

In this paper, an algorithm is proposed to resolve the precise imaging problem of space-borne SAR with large cell migration. This algorithm is derived in detail based on the squinted equivalent range model. A distinct difference from other algorithms is that this algorithm begins with range walk correction in the time domain, which obviously reduces the coupling between range and azimuth signal. This algorithm is compared with a common squint mode chirp scaling algorithm through the computer simulation, and the result shows that the imaging method presented in this paper is effective.

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References

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