本文選題：多波束 + 多源水深數(shù)據(jù)融合　； 參考：《海洋學(xué)報(bào)》2017年01期

【摘要】：本文在研究多源水深數(shù)據(jù)構(gòu)建技術(shù)的基礎(chǔ)上,分析了張力樣條插值算法和"移去-恢復(fù)"法的多源水深數(shù)據(jù)融合處理技術(shù),基于該方法選取實(shí)驗(yàn)區(qū),利用多波束、單波束、歷史海圖等多源水深數(shù)據(jù)進(jìn)行高精度海底地形融合試驗(yàn),并針對(duì)多源水深融合技術(shù)缺少誤差評(píng)估的現(xiàn)狀,利用split-sample方法對(duì)融合結(jié)果進(jìn)行水深不確定性評(píng)估,形成融合結(jié)果的可靠性空間分布。結(jié)果表明該方法無論是在數(shù)據(jù)稀疏區(qū)還是高密度區(qū)都達(dá)到了較好的融合效果,既保留了高分辨率水深數(shù)據(jù)的細(xì)節(jié)信息,又較真實(shí)的反映了研究區(qū)海底地形特征,且構(gòu)建的海底地形精度可靠,誤差百分比集中在0.5%。本文整套數(shù)據(jù)融合和結(jié)果評(píng)估方法可為多源水深數(shù)據(jù)融合的海底高精度地形構(gòu)建提供借鑒和參考。
[Abstract]:Based on the research of multi-source depth data construction technology, this paper analyzes the tension-spline interpolation algorithm and the multi-source depth data fusion processing technology based on the "remove-restore" method. Based on this method, the experimental area is selected, and the multi-beam and single-beam are used. In this paper, the multi-source bathymetric data, such as historical charts, are used to carry out the high-precision submarine topographic fusion experiment. In view of the lack of error assessment of multi-source water depth fusion technology, the split-sample method is used to evaluate the water depth uncertainty of the fusion results. The spatial distribution of the reliability of the fusion results is formed. The results show that the method achieves a good fusion effect in both sparse and high density regions, which not only preserves the detailed information of high resolution bathymetric data, but also truly reflects the characteristics of submarine topography in the study area. The accuracy of the constructed submarine terrain is reliable, and the error percentage is concentrated at 0.5%. The method of data fusion and result evaluation in this paper can be used for reference and reference for the construction of high-precision submarine topography with multi-source bathymetric data fusion.
【作者單位】： 國(guó)家海洋信息中心;
【基金】：“全球變化與海氣相互作用”專項(xiàng)資助(GASI-01-01-11)
【分類號(hào)】：P229.1

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本文編號(hào)：1951238