标准时频变换的潮汐预测初探Primary study of tidal level prediction using normal time-frequency transform
蔡松,柳林涛,王国成
摘要(Abstract):
针对传统潮汐调和分析中计算复杂和观测数据需求较长的问题,该文提出基于标准时频变换理论的潮汐预测方法。潮汐中的调和成分在其标准时频谱中可以自动显示,并且运用无为方法可以将其直接提取而无须逆变换。在不参考潮汐表的情况下,该文处理了半年的观测数据,提取了主要的调和分潮来进行重构和预测。结果表明,无为方法在潮汐的短期预测中有着较高精度和较小计算量。多次运用无为方法提取,在一定程度上可以抑制多分量信号在时频变换谱中的边缘效应,并得到有利于预测的即时调和信息。
关键词(KeyWords): 标准时频变换;无为方法;短期潮汐预测
基金项目(Foundation): 国家重大科学仪器设备开发专项(2011YQ120045);; 国家自然科学基金项目(41304023)
作者(Author): 蔡松,柳林涛,王国成
DOI: 10.16251/j.cnki.1009-2307.2018.07.004
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