| 基于Butterworth分布的跳频信号参数估计 |
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| 引用本文： | 武开有,徐以涛,沈良.基于Butterworth分布的跳频信号参数估计[J].军事通信技术,2009(1). |
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| 作者姓名： | 武开有 徐以涛 沈良 |
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| 作者单位： | 解放军理工大学通信工程学院研究生1队;解放军理工大学通信工程学院无线通信系; |
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| 摘 要： | 能够有效地估计接收到的跳频信号参数是干扰跳频通信的关键。针对接收到的未知任何先验参数的跳频信号,提出了一种基于Butterworth分布的跳频信号参数估计算法。由于Butterworth分布具有较好的时频聚集性和抑制交叉项性能,该算法能够在低信噪比条件下有效提取并估计出跳频信号的跳频周期、跳变时刻和跳频频率。仿真结果证明了该算法对跳频信号参数估计的有效性。
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| 关 键 词： | 跳频信号 时频分布 参数估计 |
Parameter Estimation of Frequency-hopping Signals Based on Butterworth Distribution |
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| WU Kai-you,XU Yi-tao,SHEN Liang.Parameter Estimation of Frequency-hopping Signals Based on Butterworth Distribution[J].Journal of Military Communications Technology,2009(1). |
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| Authors: | WU Kai-you XU Yi-tao SHEN Liang |
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| Institution: | 1.Postgraduate Team 1 ICE;PLAUST;Nanjing 210007;China;2.Department of Radio Communication ICE;PLAUST |
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| Abstract: | The key to jamming frequency-hopping communication is to estimate the parame-ters of received frequency hopping(FH) signals efficiently and precisely.An algorithm for estimating the parameters of FH signals based on Butterworth distribution was proposed without any prior knowledge.With the good time-frequency concentration and restraining cross-term ability of Butterworth distribution, this algorithm can exactly extract and estimate the parameters of FH signals such as hopping duration,hopping timing and ho... |
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| Keywords: | frequency-hopping signals time-frequency distribution parameter estimation |
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