Height resolution analysis in geosynchronous SAR

Tao Zeng; Wei Yin; Zegang Ding; Teng Long

doi:10.1049/el.2014.4455

Height resolution analysis in geosynchronous SAR

Tao Zeng, Wei Yin, Zegang Ding^*, Teng Long

^*Corresponding author for this work

School of Information and Electronics

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

Owing to the curved track, geosynchronous synthetic aperture radar (GEO SAR) can obtain a height resolution. An accurate expression of the height resolution is derived for GEO SAR based on the generalised ambiguity function and the Doppler history difference between two adjacent targets at different heights. It is found that the height resolution is introduced by the accelerated motion or the curved track along the height direction in GEO SAR. Then, factors influencing the height resolution are analysed. The height resolution of GEO SAR can be improved by a longer integration time, a higher orbital inclination and a larger eccentricity. Finally, simulation results show the effectiveness of the proposed expression of height resolution.

Original language	English
Pages (from-to)	579-581
Number of pages	3
Journal	Electronics Letters
Volume	51
Issue number	7
DOIs	https://doi.org/10.1049/el.2014.4455
Publication status	Published - 2 Apr 2015

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10.1049/el.2014.4455

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abstract = "Owing to the curved track, geosynchronous synthetic aperture radar (GEO SAR) can obtain a height resolution. An accurate expression of the height resolution is derived for GEO SAR based on the generalised ambiguity function and the Doppler history difference between two adjacent targets at different heights. It is found that the height resolution is introduced by the accelerated motion or the curved track along the height direction in GEO SAR. Then, factors influencing the height resolution are analysed. The height resolution of GEO SAR can be improved by a longer integration time, a higher orbital inclination and a larger eccentricity. Finally, simulation results show the effectiveness of the proposed expression of height resolution.",

author = "Tao Zeng and Wei Yin and Zegang Ding and Teng Long",

note = "Publisher Copyright: {\textcopyright} The Institution of Engineering and Technology 2015.",

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AU - Zeng, Tao

AU - Yin, Wei

AU - Ding, Zegang

AU - Long, Teng

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N2 - Owing to the curved track, geosynchronous synthetic aperture radar (GEO SAR) can obtain a height resolution. An accurate expression of the height resolution is derived for GEO SAR based on the generalised ambiguity function and the Doppler history difference between two adjacent targets at different heights. It is found that the height resolution is introduced by the accelerated motion or the curved track along the height direction in GEO SAR. Then, factors influencing the height resolution are analysed. The height resolution of GEO SAR can be improved by a longer integration time, a higher orbital inclination and a larger eccentricity. Finally, simulation results show the effectiveness of the proposed expression of height resolution.

AB - Owing to the curved track, geosynchronous synthetic aperture radar (GEO SAR) can obtain a height resolution. An accurate expression of the height resolution is derived for GEO SAR based on the generalised ambiguity function and the Doppler history difference between two adjacent targets at different heights. It is found that the height resolution is introduced by the accelerated motion or the curved track along the height direction in GEO SAR. Then, factors influencing the height resolution are analysed. The height resolution of GEO SAR can be improved by a longer integration time, a higher orbital inclination and a larger eccentricity. Finally, simulation results show the effectiveness of the proposed expression of height resolution.

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JO - Electronics Letters

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Height resolution analysis in geosynchronous SAR

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