Means of improving accuracy of positioning for ocean SAR

Sheng Yong Hao; Xiao Qing Wang; Xin Qing Sheng; Min Hui Zhu

Means of improving accuracy of positioning for ocean SAR

Sheng Yong Hao^*, Xiao Qing Wang, Xin Qing Sheng, Min Hui Zhu

^*Corresponding author for this work

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

2 Citations (Scopus)

Abstract

Estimation of Doppler central frequency has an important effect to accuracy of fixed position in the fixing approach with no reference points for ocean SAR. The effect of Signal-Noise-Ration (SNR) to the estimation of Doppler central frequency has been studied using theoretical method and simulation technique, and results are given in curves. Based on above results, a Doppler measurement mode is adopted in the design of ocean SAR. Compared to common imaging mode, this mode increases SNR of ocean echo by decreasing the bandwidth, then accuracy of fixed position can be improved.

Original language	English
Pages (from-to)	1213-1216
Number of pages	4
Journal	Dianzi Yu Xinxi Xuebao/Journal of Electronics and Information Technology
Volume	27
Issue number	8
Publication status	Published - Aug 2005
Externally published	Yes

Keywords

Estimation of Doppler central frequency
Position for ocean SAR
SNR

Cite this

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title = "Means of improving accuracy of positioning for ocean SAR",

abstract = "Estimation of Doppler central frequency has an important effect to accuracy of fixed position in the fixing approach with no reference points for ocean SAR. The effect of Signal-Noise-Ration (SNR) to the estimation of Doppler central frequency has been studied using theoretical method and simulation technique, and results are given in curves. Based on above results, a Doppler measurement mode is adopted in the design of ocean SAR. Compared to common imaging mode, this mode increases SNR of ocean echo by decreasing the bandwidth, then accuracy of fixed position can be improved.",

keywords = "Estimation of Doppler central frequency, Position for ocean SAR, SNR",

author = "Hao, {Sheng Yong} and Wang, {Xiao Qing} and Sheng, {Xin Qing} and Zhu, {Min Hui}",

year = "2005",

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language = "English",

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journal = "Dianzi Yu Xinxi Xuebao/Journal of Electronics and Information Technology",

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T1 - Means of improving accuracy of positioning for ocean SAR

AU - Hao, Sheng Yong

AU - Wang, Xiao Qing

AU - Sheng, Xin Qing

AU - Zhu, Min Hui

PY - 2005/8

Y1 - 2005/8

N2 - Estimation of Doppler central frequency has an important effect to accuracy of fixed position in the fixing approach with no reference points for ocean SAR. The effect of Signal-Noise-Ration (SNR) to the estimation of Doppler central frequency has been studied using theoretical method and simulation technique, and results are given in curves. Based on above results, a Doppler measurement mode is adopted in the design of ocean SAR. Compared to common imaging mode, this mode increases SNR of ocean echo by decreasing the bandwidth, then accuracy of fixed position can be improved.

AB - Estimation of Doppler central frequency has an important effect to accuracy of fixed position in the fixing approach with no reference points for ocean SAR. The effect of Signal-Noise-Ration (SNR) to the estimation of Doppler central frequency has been studied using theoretical method and simulation technique, and results are given in curves. Based on above results, a Doppler measurement mode is adopted in the design of ocean SAR. Compared to common imaging mode, this mode increases SNR of ocean echo by decreasing the bandwidth, then accuracy of fixed position can be improved.

KW - Estimation of Doppler central frequency

KW - Position for ocean SAR

KW - SNR

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M3 - Article

AN - SCOPUS:23944494800

SN - 1009-5896

VL - 27

SP - 1213

EP - 1216

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

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

IS - 8

ER -

Means of improving accuracy of positioning for ocean SAR

Abstract

Keywords

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