摘要
分析了声速剖面测量方法及其误差对多波束测深数据精度的影响。根据多波束测深仪45°倾角波束测深数据对声速剖面误差不敏感的现象,提出了利用多波束测深仪45°倾角波束测深数据确定声速剖面的方法并结合检查线计算测线交叉区特征点声速剖面误差,为测区声速剖面的外推提供控制,从而减小声速剖面测量误差对多波束测深的影响提高测深数据精度。
With the measurement of sound velocity profile （SYP） together, the effect of errors in SVP on muhibeam data is analyzed. A beam launched at 45°in multibeam system has very low sensitivity to SVP. Then SVP error in crossing areas of the primary survey lines and the checklines can be computed using data from the 45° beam and SVP of some points can be computed. Then, SVP of other points can be extrapolated using SVP of these points. The effect of errors in SVP on muhibeam data can be reduced and the quality of multibeam data becomes credible.
出处
《海洋技术》
北大核心
2009年第3期54-56,共3页
Ocean Technology
基金
国家自然科学基金资助项目(40871207)
关键词
多波束数据
声速剖面
误差影响
检查线
muhibeam data
sound velocity profile
effect of error
checklines
