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基于自适应窗长WD分析的伪码调相-载波调频复合引信信号的参数提取研究 被引量：5

The Study on Parameters Extraction of Pseudo Code Phase Modulation-Carry Frequency Modulation Combined Fuse Signal Based on the Adaptive Window Length WD Analysis
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摘要 该文研究了自适应窗长时频分析的理论及其实现方法,利用该方法对伪码体制复合引信信号进行脉冲内特征分析。这些信号具体包括伪码调相信号、伪码调相与正弦调频复合信号、伪码调相与线性调频复合信号。仿真结果表明,在信噪比为10dB时,利用自适应窗长时频分析技术,不但可以提取载频调制的特征信息,而且能够有效提取相位突变位置的特征信息。 The theory and its implementation on the adaptive window length in the analysis of time frequency are presented in this paper. This method is used to analysis the in-pulse characteristics of pseudo-code fuse signals such as Pseudo-Code Phase Modulation （PCPM）~ pseudo-code phase modulation combined by Sinusoid Frequency Modulation （SFM） and pseudo-code phase modulation combined by Linear Frequency Modulation （LFM）. The simulation result shows that both the characteristic of carry frequency modulation and phase changed position caused by the pseudo-code can be extracted effectively in SNR=10dB.
作者 李明孜 赵惠昌
机构地区 南京理工大学电子工程与光电技术学院
出处 《电子与信息学报》 EI CSCD 北大核心 2007年第9期2086-2089,共4页 Journal of Electronics & Information Technology
基金 国家部级基金资助课题
关键词 自适应窗长时频分析 伪码调相 正弦调频 线性调频 参数提取 Adaptive window length time-frequency analysis Pseudo-code phase modulation Sinusoid frequency modulation Linear frequency modulation Parameter extraction
分类号 TN971.1 [电子电信—信号与信息处理]
  • 相关文献

参考文献10

  • 1Gini F and Giannakis G B.Frequency offset and timing estimation in slowly-varying fading channels:A cyclostationary approach[J].IEEE Trans.on Comm.,1998,COM-46(3):400-411.
  • 2Serpedin E and Giannakis G B,et al..Blind joint estimation of carrier frequency offset and channel using non-redundant periodic modulation procedures[A].Statistical Signal and Array Processing,1998,Proceedings Ninth IEEE SP Workshop[C].Beijing,1998:288-291.
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  • 6熊刚,赵惠昌,林俊.伪码-载波调频侦察信号识别的谱相关方法(Ⅰ)——伪码-载波调频信号的谱相关函数[J].电子与信息学报,2005,27(7):1081-1086. 被引量：24
  • 7熊刚.典型无线电引信信号识别技术研究.[博士论文].南京:南京理工大学,2005.
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二级参考文献6

  • 1Gini F, Giannakis G B. Frequency offset and timing estimation in slowly-varying fading channels: A cyclostationary approach[J].IEEE Trans. on Comm., 1998, COM-46(3): 400 - 411.
  • 2Serpedin E, Giannakis G B, et al.. Blind joint estimation of carrier frequency offset and channel using non-redundant periodic modulation procedures[A]. Statistical Signal and Array Processing, 1998, Proceedings Ninth IEEE SP Workshop[C].Beijing, 1998:288 - 291.
  • 3Mazzenga F, Vatalaro F. Parameter estimation in CDMA multiuser detection using cyclostationary statistics[J]. Electronics Letters, 1996(2): 179- 181.
  • 4Gardner W A, Spooner C M. Detection and sources location of weak cyclostationary signals: simplication of the maximumlikelihood receiver[J]. IEEE Trans. on Comm., 1993, COM41(6): 905 - 916.
  • 5Chin-Kang C, Gardner W A. Signal-selective ime-difference-ofarrival estimation for passive location of man-made signal sources in highly corruptive environments, part Ⅱ: Algorithms and performance[J]. IEEE Trans. on SP, 1992, SP-40(5):1185- 1197.
  • 6Gardner W A. The spectral correlation theory of cyclostationary time-series. SignalProcessing, 1986, 11:13 - 36.

共引文献23

同被引文献28

引证文献5

二级引证文献18

电子与信息学报
2007年 第9期

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