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雷达信号的时——频分析和应用
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.
作者姓名:黄明亮
作者单位:桂林空中交通管理站技术保障部,广西桂林,541000
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。

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
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.
Keywords:Radar pulse signal  Short-time Fourier transform  Phase unwrapping algorithm  Time-frequency distribution
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