| 基于时频分析的相位编码信号检测及识别方法研究 |
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| 引用本文： | 杨国彬,郑志娟.基于时频分析的相位编码信号检测及识别方法研究[J].舰船电子对抗,2011,34(4):46-51. |
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| 作者姓名： | 杨国彬 郑志娟 |
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| 作者单位： | 上海微波设备研究所,上海,201802 |
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| 摘 要： | 低信噪比条件下（0dB）对相位编码信号的检测及识别是当前脉内特征分析中的重点和难点，基于这种原因，提出了一种基于时频分析（短时傅里叶变换）方法对信号脉冲进行检测，然后，重点论述了低信噪比条件下（0dB）对相位编码信号的调制类型识别及参数估计，根据对信号时频特征的分析，建立对信号进行检测及识别的算法模型，并给出了算法的理...
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| 关 键 词： | 时频分析 相位编码信号 调制识别 |
Research into Phase Shift Keyed Signals Detection and Recognition Method Based on Time-frequency Analysis |
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| YANG Guo-bin,ZHENG Zhi-juan.Research into Phase Shift Keyed Signals Detection and Recognition Method Based on Time-frequency Analysis[J].Shipboard Electronic Countermeasure,2011,34(4):46-51. |
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| Authors: | YANG Guo-bin ZHENG Zhi-juan |
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| Affiliation: | YANG Guo-bin,ZHENG Zhi-juan(Shanghai Research Institue of Microwave Equipment,Shanghai 201802,China) |
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| Abstract: | The detection and recognition to phase shift keyed(PSK) signals under the condition of low signal-to-noise ratio(SNR)(0 dB) are the emphasis and difficulty in present intra-pulse signature analysis.On the basis of this reason,this paper proposes a method based on time-frequency analysis(short time Fourier transform) to detect the signal pulse,then discusses emphatically the modulation type recognition and parameter estimation under low SNR(0 dB),according to the analysis of signal time-frequency signature,s... |
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| Keywords: | time-frequency analysis phase shift keyed signal modulation recognition |
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