海图深度基准面传递算法的精度分析  

Study on Precision of Chart Datum Transfer Algorithm

作　　者：孙新轩[1] 刘雁春[1] 暴景阳[1] 靳军[1] 

机构地区：[1]海军大连舰艇学院海测工程系,辽宁大连116018

出　　处：《测绘科学技术学报》2009年第3期228-231,共4页Journal of Geomatics Science and Technology

基　　金：国家自然科学基金资助项目(40801189;40671161);中国博士后科学基金资助项目(20080430547);教育部地球空间环境与大地测量重点实验室基金资助项目(1469990324233-03-04)

摘　　要：基于最小二乘潮位拟合传递法的数学模型,对短期验潮站海图深度基准面确定方法进行了研究。用实例对所提方法和《海道测量规范》中求取短期验潮站海图深度基准面方法进行了分析比较;探讨了影响最小二乘潮位拟合传递法精度的因素。结果表明:最小二乘潮位拟合传递法用于确定短期验潮站海图深度基准面,具有较高精度,并且可从同步时间、地理环境及站间距离等方面进一步提高该法所得海图深度基准面的精度。Based on the least square-fitting model, the datum transfer for the short term tidal gaugeis have been studied. Both the least square fitting model and the algorithm in the specification for hydrographic survey were compared with observations. The influence factors on precision of chart datum values from the least square fitting model were discussed. The results show that, while for determining the chart datum values of the short term tidal gauge, the least square fitting model can obtain the higher precision. In addition, the precision of the chart datum values can be improved by several factors, such as the simultaneous observation, the geographic environment and the distance of tidal gauges.

关 键 词：最小二乘潮位拟合法 海图深度基准面 基准面传递 短期验潮站 平均海面 

分 类 号：P229[天文地球—大地测量学与测量工程]