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引言 1967年J. P. Burg提出了最大熵法(MEM),亦称最大熵谱法,1971年、1972年Lacoss和Burg等人分别讨论了该方法的数学特征,并发现该方法优越于快速傅里叶变换。MEM的分辨率是一般谱分析的4倍,尤其是对于短资料的谱分析可得到更真实的谱估值。1972年T. J. Ulrych将此方法用于地磁资料的分析中,并采用了最终预报误差(FPE)的定阶方法确定滤波系数的阶。1974年N. Andersen提出了适合于计算机处理的MEM滤波系数的递推算法框图,可快速简便地进行谱分析。MEM方法在气象
Introduction 1967 JP Burg proposed the maximum entropy method (MEM), also known as maximum entropy spectroscopy, 1971, Lacoss and Burg et al in 1972 discussed the mathematical characteristics of the method, and found that the method is superior to Fast Fourier Transform. The resolution of MEM is four times that of normal spectral analysis, especially for the spectral analysis of short data, which leads to more realistic spectral estimation. In 1972, T. J. Ulrych applied this method to the analysis of geomagnetic data, and determined the order of the filter coefficients by the method of order-determining the final prediction error (FPE). In 1974, N. Andersen proposed a recursive algorithm block diagram of MEM filter coefficients suitable for computer processing, allowing for quick and easy spectral analysis. MEM method in weather