雷达信号的时——频分析和应用 |
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引用本文: | 黄明亮.雷达信号的时——频分析和应用[J].大众科技,2012,14(4):29-34. |
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作者姓名: | 黄明亮 |
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作者单位: | 桂林空中交通管理站技术保障部,广西桂林,541000 |
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摘 要: | 针对常见的雷达脉冲信号(常规信号(NS),线性调频信号(LFM),双线性调频信号(DLFM)运用时频工具对调制方式的识别进行研究。运用两种时频分析方法1.短时傅里叶变换2.相位展开算法.通过这两种算法对雷达信号的调制方式进行分析,并通过仿真得到雷达信号的时--频分布以及时—频,时—相曲线,对仿真结果进行研究。通过仿真实验表明,雷达信号调制方式识别算法是可行的,有效的,而且具有良好的性能。
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关 键 词: | 雷达脉冲信号 短时傅里叶变换 相位展开算法 时--频分布 |
Radar signal analysis and application in time domain and frequency domain |
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Abstract: | The common issue for radar pulse signal(Normal Signal(NS),Linear Frequency Modulated(LFM),Double Linear Frequency Modulated(DLFM)) use tool for time-frequency modulation of the recognition of the research.In this article,the main use of two time-frequency analysis method 1.STFT 2.Phase unwrapping algorithm.Through these two algorithms on the modulation of radar signals to identify and receive radar signals through the simulation time-frequency distribution and the time-frequency,time-with curves,a study on the simulation results.A large number of simulation experiments show that research in this article modulation radar signal recognition algorithm is feasible,effective and has a good performance. |
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Keywords: | Radar pulse signal Short-time Fourier transform Phase unwrapping algorithm Time-frequency distribution |
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