Modified stepped-frequency SAR imaging algorithm with frequency-domain spectrum reconstruction

L. Liu; Z. Ding; D. Yao; T. Zeng

doi:10.1049/cp.2012.1715

Modified stepped-frequency SAR imaging algorithm with frequency-domain spectrum reconstruction

L. Liu, Z. Ding, D. Yao^*, T. Zeng

^*Corresponding author for this work

School of Information and Electronics

Beijing Institute of Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Stepped-frequency synthetic aperture radar (SAR) always transmits stepped-frequency chirps and reconstructs the wideband spectrum in frequency domain to achieve high range resolution. "Imaging for each sub-band, and then spectrum reconstruction" is an acceptable algorithm flow, but it has the drawback of range spectrum aliasing due to the range and azimuth (2D) spectrum twisting. In this paper, through the study of the extended range spectrum, a modified stepped-frequency SAR imaging algorithm is proposed. It solves the range spectrum aliasing by the range spectrallength extension (RSLE). Simulations and experimental results are provided to demonstrate the proposed algorithm.

Original language	English
Title of host publication	IET International Conference on Radar Systems, Radar 2012
Edition	603 CP
DOIs	https://doi.org/10.1049/cp.2012.1715
Publication status	Published - 2012
Event	IET International Conference on Radar Systems, Radar 2012 - Glasgow, United Kingdom Duration: 22 Oct 2012 → 25 Oct 2012

Publication series

Name	IET Conference Publications
Number	603 CP
Volume	2012

Conference

Conference	IET International Conference on Radar Systems, Radar 2012
Country/Territory	United Kingdom
City	Glasgow
Period	22/10/12 → 25/10/12

Keywords

Range spectrum aliasing
Spectrum reconstruction
Stepped-frequency SAR
The 2D spectrum

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10.1049/cp.2012.1715

Cite this

@inproceedings{9b7cdf8f1dd843bebd9a7e6e447f6450,

title = "Modified stepped-frequency SAR imaging algorithm with frequency-domain spectrum reconstruction",

abstract = "Stepped-frequency synthetic aperture radar (SAR) always transmits stepped-frequency chirps and reconstructs the wideband spectrum in frequency domain to achieve high range resolution. {"}Imaging for each sub-band, and then spectrum reconstruction{"} is an acceptable algorithm flow, but it has the drawback of range spectrum aliasing due to the range and azimuth (2D) spectrum twisting. In this paper, through the study of the extended range spectrum, a modified stepped-frequency SAR imaging algorithm is proposed. It solves the range spectrum aliasing by the range spectrallength extension (RSLE). Simulations and experimental results are provided to demonstrate the proposed algorithm.",

keywords = "Range spectrum aliasing, Spectrum reconstruction, Stepped-frequency SAR, The 2D spectrum",

author = "L. Liu and Z. Ding and D. Yao and T. Zeng",

year = "2012",

doi = "10.1049/cp.2012.1715",

language = "English",

isbn = "9781849196765",

series = "IET Conference Publications",

number = "603 CP",

booktitle = "IET International Conference on Radar Systems, Radar 2012",

edition = "603 CP",

note = "IET International Conference on Radar Systems, Radar 2012 ; Conference date: 22-10-2012 Through 25-10-2012",

}

Liu, L, Ding, Z , Yao, D & Zeng, T 2012, Modified stepped-frequency SAR imaging algorithm with frequency-domain spectrum reconstruction. in IET International Conference on Radar Systems, Radar 2012. 603 CP edn, 1715, IET Conference Publications, no. 603 CP, vol. 2012, IET International Conference on Radar Systems, Radar 2012, Glasgow, United Kingdom, 22/10/12. https://doi.org/10.1049/cp.2012.1715

Modified stepped-frequency SAR imaging algorithm with frequency-domain spectrum reconstruction. / Liu, L.; Ding, Z.; Yao, D. et al.
IET International Conference on Radar Systems, Radar 2012. 603 CP. ed. 2012. 1715 (IET Conference Publications; Vol. 2012, No. 603 CP).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Modified stepped-frequency SAR imaging algorithm with frequency-domain spectrum reconstruction

AU - Liu, L.

AU - Ding, Z.

AU - Yao, D.

AU - Zeng, T.

PY - 2012

Y1 - 2012

N2 - Stepped-frequency synthetic aperture radar (SAR) always transmits stepped-frequency chirps and reconstructs the wideband spectrum in frequency domain to achieve high range resolution. "Imaging for each sub-band, and then spectrum reconstruction" is an acceptable algorithm flow, but it has the drawback of range spectrum aliasing due to the range and azimuth (2D) spectrum twisting. In this paper, through the study of the extended range spectrum, a modified stepped-frequency SAR imaging algorithm is proposed. It solves the range spectrum aliasing by the range spectrallength extension (RSLE). Simulations and experimental results are provided to demonstrate the proposed algorithm.

AB - Stepped-frequency synthetic aperture radar (SAR) always transmits stepped-frequency chirps and reconstructs the wideband spectrum in frequency domain to achieve high range resolution. "Imaging for each sub-band, and then spectrum reconstruction" is an acceptable algorithm flow, but it has the drawback of range spectrum aliasing due to the range and azimuth (2D) spectrum twisting. In this paper, through the study of the extended range spectrum, a modified stepped-frequency SAR imaging algorithm is proposed. It solves the range spectrum aliasing by the range spectrallength extension (RSLE). Simulations and experimental results are provided to demonstrate the proposed algorithm.

KW - Range spectrum aliasing

KW - Spectrum reconstruction

KW - Stepped-frequency SAR

KW - The 2D spectrum

UR - http://www.scopus.com/inward/record.url?scp=84877763484&partnerID=8YFLogxK

U2 - 10.1049/cp.2012.1715

DO - 10.1049/cp.2012.1715

M3 - Conference contribution

AN - SCOPUS:84877763484

SN - 9781849196765

T3 - IET Conference Publications

BT - IET International Conference on Radar Systems, Radar 2012

T2 - IET International Conference on Radar Systems, Radar 2012

Y2 - 22 October 2012 through 25 October 2012

ER -

Modified stepped-frequency SAR imaging algorithm with frequency-domain spectrum reconstruction

Abstract

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Keywords

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