Improvement of Doppler central frequency estimation in existence of hard target

Sheng Yong Hao; Xin Qing Sheng

Improvement of Doppler central frequency estimation in existence of hard target

^*Corresponding author for this work

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

Abstract

Estimation of Doppler central frequency has an important effect on accuracy of fixed position in the fixing approach with no reference points for ocean SAR. In this paper, the case has been studied that there are strong scatter points in the imaging area, which are scanned partly by antenna beam. A time-frequency means is proposed to filter out the strong points through WVD transform. The effect of this means is verified by simulation results lastly.

Original language	English
Pages (from-to)	293-296
Number of pages	4
Journal	Dianzi Yu Xinxi Xuebao/Journal of Electronics and Information Technology
Volume	26
Issue number	SUPPL.
Publication status	Published - Sept 2004
Externally published	Yes

Keywords

Estimation of Doppler central frequency
Strong scatter points
WVD-transform

Cite this

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title = "Improvement of Doppler central frequency estimation in existence of hard target",

abstract = "Estimation of Doppler central frequency has an important effect on accuracy of fixed position in the fixing approach with no reference points for ocean SAR. In this paper, the case has been studied that there are strong scatter points in the imaging area, which are scanned partly by antenna beam. A time-frequency means is proposed to filter out the strong points through WVD transform. The effect of this means is verified by simulation results lastly.",

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year = "2004",

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AU - Hao, Sheng Yong

AU - Sheng, Xin Qing

PY - 2004/9

Y1 - 2004/9

N2 - Estimation of Doppler central frequency has an important effect on accuracy of fixed position in the fixing approach with no reference points for ocean SAR. In this paper, the case has been studied that there are strong scatter points in the imaging area, which are scanned partly by antenna beam. A time-frequency means is proposed to filter out the strong points through WVD transform. The effect of this means is verified by simulation results lastly.

AB - Estimation of Doppler central frequency has an important effect on accuracy of fixed position in the fixing approach with no reference points for ocean SAR. In this paper, the case has been studied that there are strong scatter points in the imaging area, which are scanned partly by antenna beam. A time-frequency means is proposed to filter out the strong points through WVD transform. The effect of this means is verified by simulation results lastly.

KW - Estimation of Doppler central frequency

KW - Strong scatter points

KW - WVD-transform

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M3 - Article

AN - SCOPUS:11144226281

SN - 1009-5896

VL - 26

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EP - 296

JO - Dianzi Yu Xinxi Xuebao/Journal of Electronics and Information Technology

JF - Dianzi Yu Xinxi Xuebao/Journal of Electronics and Information Technology

IS - SUPPL.

ER -

Improvement of Doppler central frequency estimation in existence of hard target

Abstract

Keywords

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