吉林大学学报(地球科学版) ›› 2019, Vol. 49 ›› Issue (3): 902-908.doi: 10.13278/j.cnki.jjuese.20180304
• 地球探测与信息技术 • 上一篇
郑连林1, 姚连璧1,2
Zheng Lianlin1, Yao Lianbi1,2
摘要: 道路平曲线坐标计算中可能会采用线元法,其中线元类型有直线、圆曲线和缓和曲线。本文采用改进的线元表对平曲线数据进行预处理,讨论了Gauss-Chebyshev积分公式的应用并通过数值计算实验研究了高斯点数量对待定点计算的影响,在此基础上使用Gauss-Chebyshev积分方法和5点改进型Gauss-Chebyshev积分方法解决平曲线计算中的定积分计算问题。为验证Gauss-Chebyshev积分的计算效果,选取某铁路一段平曲线作为计算数据,指定16个临近点作为数值实验对象,实验结果显示反算所得各点里程和偏距与起始给定的数值一致。
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