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基于四階累積過(guò)的陣列擴(kuò)展

魏平,  肖先賜

魏平, 肖先賜. 基于四階累積過(guò)的陣列擴(kuò)展[J]. 電子與信息學(xué)報(bào), 1997, 19(6): 745-750.
引用本文: 魏平, 肖先賜. 基于四階累積過(guò)的陣列擴(kuò)展[J]. 電子與信息學(xué)報(bào), 1997, 19(6): 745-750.
Wei Ping, Xiao Xianci. FOURTH-ORDER CUMULANT BASED ARRAY EXTENSION IN DIRECTION-FINDING[J]. Journal of Electronics & Information Technology, 1997, 19(6): 745-750.
Citation: Wei Ping, Xiao Xianci. FOURTH-ORDER CUMULANT BASED ARRAY EXTENSION IN DIRECTION-FINDING[J]. Journal of Electronics & Information Technology, 1997, 19(6): 745-750.

基于四階累積過(guò)的陣列擴(kuò)展

FOURTH-ORDER CUMULANT BASED ARRAY EXTENSION IN DIRECTION-FINDING

  • 摘要: 在陣列測(cè)向問(wèn)題中應(yīng)用高階累積量除了信息利用更充分和抑制高斯噪聲等優(yōu)點(diǎn)之外還具有陣列擴(kuò)展的功能.本文推導(dǎo)了基于四階累積量的陣列擴(kuò)展方法,研究了虛擬陣的結(jié)構(gòu).放寬了協(xié)方差方法對(duì)信源數(shù)目的限制.但該方法在窄帶多信號(hào)方向估計(jì)應(yīng)用中存在局限.本文還推導(dǎo)了四階相干問(wèn)題和陣列擴(kuò)展的限制條件.最后給出了實(shí)驗(yàn)舉例.
    Abstract: In the array processing problem, the high-order cumulants not only are capable to reduce the Gaussian noises but also have the aperture extension property. The method of the aperture extension using the fourth-order cumulants are studied and the structure of the corresponding virtual array are presented in this paper. The fourth-order coherent problem in the application in the narrow-band direction-finding system is given and analyzed. We obtain the array aperture extension condition of the fourth-order cumulant-based method to the multiple sources case. The numerical results support the analytic results.
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  • Mendel J M. Tutorial on higher-order statistics(spectra) in signal processing and system theory:[2]Theoretical results and some applications. Proc[J].IEEE.1991, 79(3):278-305[3]Pan P, Nikias C L. Harmonic decomposition methods in cumulant domains. Proc. Int. Conf. ASSP, New York: April 1988, 2356-2359.[4]Swami A, Mendel J M. Cumulant-based approach to the harmonic retrieval and related problems.[5]IEEE Trans. on SP, 1991, SP-39(5): 1099-1109.[6]Porat B, Friedlander B. Direction-finding algorithms based on high-order statistics. IEEE Trans. on SP, 1991, SP-39(9): 2016-2023.[7]魏平,肖先踢,李樂(lè)民.基于四階累積量特征分解的空間諳估計(jì)測(cè)向方法.電子科學(xué)學(xué)刊,1995, 17(3): 243-249.[8]Dogan M C, Mendel J M. Application of cumulants to array processing Part I: Aperture extension and array calibration, IEEE Trans. on SP, 1995, SP-43(5): 1200-1216.[9]Dogan M C, Mendel J M. Application of cumulants to array processing part 11: Non-Gaussian noise suppression, IEEE Trans. on SP, 1995, SP-43(7): 1663-1676.
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出版歷程
  • 收稿日期:  1996-03-25
  • 修回日期:  1997-01-21
  • 刊出日期:  1997-11-19

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