| 多波束测深仪姿态对测深影响分析及误差校正技术 |
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| 引用本文： | 杨海东.多波束测深仪姿态对测深影响分析及误差校正技术[J].应用声学,2023,42(5):1024-1032. |
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| 作者姓名： | 杨海东 |
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| 作者单位： | 南昌理工学院 |
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| 摘 要： | 传统多波束测深仪姿态校正处理效率较低，并且校正质量受姿态设备精度影响较大。在平坦海底条件下，测底数据的一些数学拟合特征可较好地反演姿态，为此提出基于多波束测底数据特征进行姿态拟合并校正的方法。本文首先对姿态对测深的影响进行理论分析和仿真分析，得到“横滚和升沉的影响较大、俯仰的影响较小”的结论。其次提出基于测底数据进行姿态补偿的方法，并对实测海底数据进行姿态拟合并校正，校正后海深分布集中度提高。分析表明提出的方法在多波束测深仪姿态校正技术领域有较好的应用价值。
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| 关 键 词： | 多波束测深仪 姿态校正 测底数据拟合 |
| 收稿时间： | 2022/5/4 0:00:00 |
| 修稿时间： | 2023/8/29 0:00:00 |
Analysis on influence of attitude of multi beam echo sounder and error calibration technology |
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| YANG Hai-dong.Analysis on influence of attitude of multi beam echo sounder and error calibration technology[J].Applied Acoustics,2023,42(5):1024-1032. |
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| Authors: | YANG Hai-dong |
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| Affiliation: | Nanchang Institute of Technology |
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| Abstract: | Traditional attitude calibration processing of multibeam echo sounder (MBES) has low efficiency, meanwhile the calibration quality is affected significantly by the accuracy of attitude equipment. Under the condition of flat seabed, some mathematical fitting features of the bottom data can be used to invert the attitude. Therefore, a method of attitude fitting and calibration is proposed based on the features of MBES bottom data. Firstly, we analyze the influence of attitude on bathymetry by means of theory and simulation, and draw a conclusion that roll and heave have greater influence than pitch. Secondly, we propose the method of attitude compensation based on bottom data. We also deal with the real seabed data by fitting and calibrating their attitudes, coming with a higher concentration of the sea depth distribution. The analysis shows that the method is valuable in the application of MBES attitude calibration field. |
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