欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
本文根据东海大桥从2006年9月19日至11月15日的GPS监测数据，通过傅立叶变换发现明显的半日波信息，用最小二乘谐估计分析了半日波的成因主要是多路径效应，其数值约为1．5cm；只有在大潮前后，潮汐对桥面竖向位移也有较为明显的半日波信号，此时为两种因素引起的半日波信号的叠加。
英文摘要：
According to the GPS measurement of Donghai-Bridge from Sept. 19-Nov. 15, 2006, the semidiurnal wave signal was obviously found by flourier transform method and its cause analyzed by the least-square harmonic estimation. The main factor of this semi-diurnal signal was multi-path effect and its value about 1.5cm. But, only in the high tide time, the effect of the tide on vertical displacement of bridge deck could also cause the semi-diurnal wave signal which was triggered by multi-path effect at the same time.
同期刊论文项目
同项目期刊论文
位置：