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Proceedings Paper

Improvement of sea-environment sounding technology and signal processing method for HF ground-wave radar
Author(s): Jinggao Liu; Zhengqi Zheng; Chengfa Wang; Jieyi Yin
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Paper Abstract

In the research of using HF ground wave radar to detect sea environment, we adopt symmetrical Yagi antenna array, correct the influence on antenna beam direction by platform on-sea and sea surface, optimize the schemes in the post- processing, which include multiple correlation, Bragg- Doppler spectrum identification and reconstruction processing. During the signal gathering, the statistical character of slow sea-state variation is utilized. It facilitates the multiple correlation integration and satisfy the requirement for reconstruction processing. So the reliability of extracting sea echo data and articulation of Bragg-Doppler spectrum are greatly improved. We simulate how platform on-sea and sea surface influence beam direction with scale model. And under varied conditions the rise degree of main beam is measured. These data can help us correct the direction of vertical antenna during practical erecting. With these data, we do the inversion of sea surface flow field and wave field parameters. The result agrees with what the standard scaling machine measure.

Paper Details

Date Published: 19 August 1998
PDF: 6 pages
Proc. SPIE 3503, Microwave Remote Sensing of the Atmosphere and Environment, (19 August 1998); doi: 10.1117/12.319470
Show Author Affiliations
Jinggao Liu, East China Normal Univ. (China)
Zhengqi Zheng, East China Normal Univ. (China)
Chengfa Wang, East China Normal Univ. (China)
Jieyi Yin, East China Normal Univ. (China)


Published in SPIE Proceedings Vol. 3503:
Microwave Remote Sensing of the Atmosphere and Environment
Tadahiro Hayasaka; Dong Liang Wu; Yaqiu Jin; JingShang Jiang, Editor(s)

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