Impacts of time-variance background ionosphere on L-band geosynchronous SAR imaging

Ye Tian; Cheng Hu; Xinyu Zhang; Teng Long; Zegang Ding; Mingming Bian

Impacts of time-variance background ionosphere on L-band geosynchronous SAR imaging

Ye Tian
, Cheng Hu^*
, Xinyu Zhang
, Teng Long
, Zegang Ding
, Mingming Bian

^*Corresponding author for this work

School of Information and Electronics

Beijing Institute of Technology
Qian Xuesen Laboratory of Space Technology

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

4 Citations (Scopus)

Abstract

Due to the long integration time of Geosynchronous Synthetic Aperture Radar (GEO SAR), the variance of ionosphere within integration time cannot be ignored, thus it is necessary to take the effects of ionosphere variance into consideration. In this paper, a model is applied to describe the total electron content (TEC) variance within integration time. Then, the effect of phase error introduced by time-variance ionopshere on GEO SAR imaging is analyzed based on this model. After that, the mathematics expression of GEO SAR image displacement and image defocus is obtained, the corresponding influence is simulated. Finally, the conclusion is drawn.

Original language	English
Article number	6856794
Pages (from-to)	319-322
Number of pages	4
Journal	Proceedings of the European Conference on Synthetic Aperture Radar, EUSAR
Volume	Proceedings of the European Conference on Synthetic Aperture Radar, EUSAR
Publication status	Published - 2014

Cite this

@article{027ba4238bb34a31a7fd2cc5cf142e46,

title = "Impacts of time-variance background ionosphere on L-band geosynchronous SAR imaging",

abstract = "Due to the long integration time of Geosynchronous Synthetic Aperture Radar (GEO SAR), the variance of ionosphere within integration time cannot be ignored, thus it is necessary to take the effects of ionosphere variance into consideration. In this paper, a model is applied to describe the total electron content (TEC) variance within integration time. Then, the effect of phase error introduced by time-variance ionopshere on GEO SAR imaging is analyzed based on this model. After that, the mathematics expression of GEO SAR image displacement and image defocus is obtained, the corresponding influence is simulated. Finally, the conclusion is drawn.",

author = "Ye Tian and Cheng Hu and Xinyu Zhang and Teng Long and Zegang Ding and Mingming Bian",

note = "Publisher Copyright: {\textcopyright} VDE VERLAG GMBH · Berlin · Offenbach, Germany.",

year = "2014",

language = "English",

volume = "Proceedings of the European Conference on Synthetic Aperture Radar, EUSAR",

pages = "319--322",

journal = "Proceedings of the European Conference on Synthetic Aperture Radar, EUSAR",

issn = "2197-4403",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

}

Impacts of time-variance background ionosphere on L-band geosynchronous SAR imaging. / Tian, Ye; Hu, Cheng; Zhang, Xinyu et al.
In: Proceedings of the European Conference on Synthetic Aperture Radar, EUSAR, Vol. Proceedings of the European Conference on Synthetic Aperture Radar, EUSAR, 6856794, 2014, p. 319-322.

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

TY - JOUR

T1 - Impacts of time-variance background ionosphere on L-band geosynchronous SAR imaging

AU - Tian, Ye

AU - Hu, Cheng

AU - Zhang, Xinyu

AU - Long, Teng

AU - Ding, Zegang

AU - Bian, Mingming

PY - 2014

Y1 - 2014

N2 - Due to the long integration time of Geosynchronous Synthetic Aperture Radar (GEO SAR), the variance of ionosphere within integration time cannot be ignored, thus it is necessary to take the effects of ionosphere variance into consideration. In this paper, a model is applied to describe the total electron content (TEC) variance within integration time. Then, the effect of phase error introduced by time-variance ionopshere on GEO SAR imaging is analyzed based on this model. After that, the mathematics expression of GEO SAR image displacement and image defocus is obtained, the corresponding influence is simulated. Finally, the conclusion is drawn.

AB - Due to the long integration time of Geosynchronous Synthetic Aperture Radar (GEO SAR), the variance of ionosphere within integration time cannot be ignored, thus it is necessary to take the effects of ionosphere variance into consideration. In this paper, a model is applied to describe the total electron content (TEC) variance within integration time. Then, the effect of phase error introduced by time-variance ionopshere on GEO SAR imaging is analyzed based on this model. After that, the mathematics expression of GEO SAR image displacement and image defocus is obtained, the corresponding influence is simulated. Finally, the conclusion is drawn.

UR - https://www.scopus.com/pages/publications/84991608372

M3 - Article

AN - SCOPUS:84991608372

SN - 2197-4403

VL - Proceedings of the European Conference on Synthetic Aperture Radar, EUSAR

SP - 319

EP - 322

JO - Proceedings of the European Conference on Synthetic Aperture Radar, EUSAR

JF - Proceedings of the European Conference on Synthetic Aperture Radar, EUSAR

M1 - 6856794

ER -

Impacts of time-variance background ionosphere on L-band geosynchronous SAR imaging

Abstract

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