摘要
针对目前广泛使用的经验取浅方法在安全可靠性上的不足,提出一种基于不确定度的水深控浅方法。所提方法计算原始观测和内插水深的不确定度信息,并基于不确定度信息设计安全可靠的水深控浅模型,比对分析两种水深表达方法的保证率。试验证明:与经验取浅方法相比,所提方法可明显提高水深模型的保证率,特别是在水深变化复杂的区域。
Aiming at the shortage of a common experimental shoal-biased method assuring navigation safe,a method for controlling shoal-bias based on uncertainty is proposed.Uncertainties of raw depth and interpolated depths are calculated,a safe and reliable model for controlling shoal-bias based on depth uncertainty is designed,and the assuring rate of two depth models for safe navigation are compared and analyzed.Experimental results demonstrate： the proposed method have higher assuring rate than that of the experimental shoal-biased binning method,especially in areas where depths change complexly.
出处
《测绘学报》
EI
CSCD
北大核心
2012年第2期184-190,共7页
Acta Geodaetica et Cartographica Sinica
基金
国家自然科学基金(41171349
40801189)
国家863计划(2012AA12A406
2009AA12Z202)
关键词
不确定度
水深
经验取浅
控浅
uncertainty
depth
shoal-biased binning based on experience
shoal-bias controlling
