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一種Alpha穩(wěn)定分布噪聲下目標(biāo)螺旋槳特征提取方法

王彬,  侯越圣

王彬, 侯越圣. 一種Alpha穩(wěn)定分布噪聲下目標(biāo)螺旋槳特征提取方法[J]. 電子與信息學(xué)報(bào), 2020, 42(10): 2478-2484. doi: 10.11999/JEIT190916
引用本文: 王彬, 侯越圣. 一種Alpha穩(wěn)定分布噪聲下目標(biāo)螺旋槳特征提取方法[J]. 電子與信息學(xué)報(bào), 2020, 42(10): 2478-2484. doi: 10.11999/JEIT190916
Bin WANG, Yuesheng HOU. Extraction of Target Propeller Features in Alpha Distribution Noise[J]. Journal of Electronics & Information Technology, 2020, 42(10): 2478-2484. doi: 10.11999/JEIT190916
Citation: Bin WANG, Yuesheng HOU. Extraction of Target Propeller Features in Alpha Distribution Noise[J]. Journal of Electronics & Information Technology, 2020, 42(10): 2478-2484. doi: 10.11999/JEIT190916

一種Alpha穩(wěn)定分布噪聲下目標(biāo)螺旋槳特征提取方法

doi: 10.11999/JEIT190916

  • 戰(zhàn)略支援部隊(duì)信息工程大學(xué) 鄭州 450001

基金項(xiàng)目: 國家自然科學(xué)基金 (61572518)
詳細(xì)信息
    作者簡介:

    王彬：女，1971年生，副教授，研究方向?yàn)樾盘柗治雠c處理

    侯越圣：男，1995年生，碩士生，研究方向?yàn)樾盘柗治雠c處理

    通訊作者:

    王彬　commutech@163.com

  • 中圖分類號: TN911.7

Extraction of Target Propeller Features in Alpha Distribution Noise

  • PLA Strategic Support Force Information Engineering University, Zhengzhou 450001, China

Funds: The National Natural Science Foundation of China(61572518)
  • 摘要: 為了解決Alpha穩(wěn)定分布噪聲下目標(biāo)螺旋槳特征提取問題，該文提出一種基于分?jǐn)?shù)低階循環(huán)譜的特征提取方法。首先，從理論上推導(dǎo)出脈沖噪聲條件下艦船輻射噪聲分?jǐn)?shù)低階循環(huán)譜，指出分?jǐn)?shù)低階循環(huán)譜中出現(xiàn)峰值與螺旋槳特征的關(guān)系。然后根據(jù)該關(guān)系，提出基于分?jǐn)?shù)低階循環(huán)譜的螺旋槳特征估計(jì)方法。最后，通過仿真實(shí)驗(yàn)驗(yàn)證該方法的性能，并通過實(shí)測數(shù)據(jù)進(jìn)一步驗(yàn)證了算法有效性。
    Abstract: In order to solve the problem of target propeller features extraction under Alpha stable distribution noise, a method based on fractional low-order cyclic spectrum is proposed. Firstly, the low-order cyclic spectrum of ship radiation noise in impulse noise is derived, and the relationship between the propeller features and the peak value in the fractional low-order cyclic spectrum is given. Based on this, a propeller feature estimation method based on fractional low-order cyclic spectrum is proposed. Finally, the performance of method is verified by simulation experiments, and the effectiveness of the algorithm is further verified by the actual data.
    • HTML全文

  • 圖  1  DEMON譜估計(jì)流程

    圖  2  螺旋槳特征提取方法流程

    圖  3  艦船輻射噪聲波形

    圖  4  $\alpha = 2.0$時(shí)的譜分析結(jié)果

    圖  5  $\alpha = 1.5$時(shí)的譜分析結(jié)果

    圖  6  $\alpha = 1.2$時(shí)的譜分析結(jié)果

    圖  7  噪聲特征指數(shù)對葉頻估計(jì)性能影響

    圖  8  混合信噪比對葉頻估計(jì)性能影響

    圖  9  AUV輻射噪聲時(shí)域波形

    圖  10  AUV輻射噪聲不同頻段循環(huán)譜分析結(jié)果

    表  1  AUV軸頻估計(jì)結(jié)果

    距離(m)11222.5
    螺旋槳轉(zhuǎn)速
    設(shè)定值(r/min)    		300400300500400
    軸頻估計(jì)值(Hz)4.716.344.737.936.28
    估計(jì)誤差(Hz)0.290.330.270.400.39
    下載: 導(dǎo)出CSV
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出版歷程
  • 收稿日期:  2019-11-14
  • 修回日期:  2020-05-04
  • 網(wǎng)絡(luò)出版日期:  2020-05-16
  • 刊出日期:  2020-10-13

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