| 低频线谱的一种估计方法 |
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| 引用本文： | 王辉照,包青华.低频线谱的一种估计方法[J].中国海洋大学学报(自然科学版),1995(3). |
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| 作者姓名： | 王辉照 包青华 |
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| 摘 要： | 分析几种低频线谱参数估计方法的优点与不足，结合舰艇噪声低频线谱所具有的特点，应用数字滤波一相关谱估计（ＤＦ—Ｃ）和自回归移动平均（ＡＲＭＡ）模型相结合的方法（ＤＦ—ＡＲＭＡ）对低频线谱作估计，所得线谱的强度和频率估计值准确度较高。
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| 关 键 词： | 低频线谱 数字滤波 相关谱估计 DF—ARMA方法 |
AN ESTIMATION METHOD OF LOW-FREQUENCY LINEAR SPECTRA |
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| Wang Huizhao, Bac Qinghua.AN ESTIMATION METHOD OF LOW-FREQUENCY LINEAR SPECTRA[J].Periodical of Ocean University of China,1995(3). |
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| Authors: | Wang Huizhao Bac Qinghua |
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| Institution: | Technical Sciences College |
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| Abstract: | This paper describes a method to estimate the amplitude and frequency of low frequency spectrum lines. By sythesizing the advantages and disadvantages of several existing methods and considering the traits of submarine noise spectra,we present the DF -- ARMA method, which is a combination of the digital filter ----correlation specrum estimation,DF--C,and the ARMA estimation. The precision of the estimation is higher. |
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| Keywords: | Low frequency linear spectrum digital fliter correlation spectrumestimation DF -- ARMA method |
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