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实时动态定位(RTK)测量技术应用中几个问题的探讨 被引量:2
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作者 董雪亮 《山西水利科技》 2008年第4期21-22,共2页
介绍了实时动态定位测量技术(RTK)基本原理及特点,讨论了测点的选择及施工放样以及在具体测量中遇到的几个问题和解决的方法。
关键词 实时动态定位测量技术 原理 特点 问题
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AN ANALYTIC METHOD OF FRACTIONAL STEPS FOR THE NUMERICAL SOLUTION TO CONVECTION-DOMINATED PROBLEMS
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作者 吴江航 孙毓平 《Science China Mathematics》 SCIE 1990年第8期944-954,共11页
An analytic method of fractional steps, which is unconditionally L_∞-stable, is proposed for the numerical solution to convection-dominated problems. In this paper the stability and convergence of the analytic soluti... An analytic method of fractional steps, which is unconditionally L_∞-stable, is proposed for the numerical solution to convection-dominated problems. In this paper the stability and convergence of the analytic solution with fractional steps to both linear and nonlinear problems are proved, and its error estimates are presented. 展开更多
关键词 convection-dominated problemS METHOD of fractional STEPS BACKWARD characteristics technique finite ANALYTIC METHOD maximum and minimum principles.
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