| Determination of Precise Instantaneous Height at Multibeam Transducer |
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| 作者姓名： | ZHAO Jianhu ZHANG Hongmei John E. Hughes Clarke |
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| 作者单位： | School of Geodesy and Geomatics Wuhan University，129 Luoyu Road Wuhan 430079 China |
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| 基金项目： | Funded by the National Natural Science Foundation of China （No.40776048） |
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| 摘 要： | To overcome the shortcomings of the traditional multibeam survey and data processing, a new method is presented for the precise determination of the instantaneous height at the multibeam transducer by ...
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| 关 键 词： | 多波束换能器 瞬时高程精确 确定方法 GPS 数字信号处理 |
| 文章编号： | 1009-5020（2007）04-250-05 |
| 收稿时间： | 2007-09-05 |
Determination of precise instantaneous height at multibeam transducer |
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| ZHAO Jianhu ZHANG Hongmei John E. Hughes Clarke.Determination of Precise Instantaneous Height at Multibeam Transducer[J].Geo-Spatial Information Science,2007,10(4):250-254. |
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| Authors: | Zhao Jianhu Zhang Hongmei John E Hughes Clarke |
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| Institution: | School of Geodesy and Geomatics, Wuhan University, 129 Luoyu Road, Wuhan 430079, China |
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| Abstract: | To overcome the shortcomings of the traditional multibeam survey and data processing, a new method is presented for the precise determination of the instantaneous height at the multibeam transducer by the blend of GPS height and heave signals. Before signal blend, GPS height and heave signals need to be corrected first to the transducer center by attitude correction. Second, the GPS height needs to be checked and modified by heave check and modification itself. Butterworth and FFT (fast Fourier transformation) were used in the signal blend. Finally, FFT is thought to be appropriate in signal processing. The new method effi-ciently overcomes the shortcomings of the traditional method, and this is proven well by the MBS (multibeam bathymetric system) experiment. |
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| Keywords: | multibeam digital signal processing GPS heave |
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