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本文根据太湖风浪观测资料,进行了最大熵法风浪谱估计和传统谱估计方法的分析比较,讨论了最大熵法的原理。结果表明,最大熵法优于传统方法,最大熵法避免了一些不切实际的假设,不需要使用窗函数,减少了谱泄漏,提高了谱估计精度,即使对较短的序列,也能得到较好的谱估计结果,为风浪谱估计提供了一种有效的方法。
Based on the observation data of wind and waves in Taihu Lake, this paper analyzes and compares the methods of maximum entropy method and spectrum estimation, and discusses the principle of maximum entropy method. The results show that the maximum entropy method is superior to the traditional method, the maximum entropy method to avoid some unrealistic assumptions, do not need to use the window function, reduce the spectrum leakage, improve the spectral estimation accuracy, even for shorter sequences can also be obtained The better spectral estimation results provide an effective method for the estimation of wind wave spectrum.