本文以七股觀測樁的現場波浪水位時序列數據為分析資料，以小波轉換為基本工具，針對群波現象之基本特性加以分析討論，進而定義出新二個的波浪參數NIt及NIf，其中NIt可以在時域上呈現波浪的成長與衰減，NIf則可以用來做為分析波浪之品管依據。

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