| 基于Gabor谱方法的跳频信号参数盲估计 |
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| 引用本文： | 张曦,杜兴民,闫涛.基于Gabor谱方法的跳频信号参数盲估计[J].现代防御技术,2007,35(4):89-94. |
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| 作者姓名： | 张曦 杜兴民 闫涛 |
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| 作者单位： | 空军工程大学,工程学院,陕西,西安,710038 |
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| 摘 要： | 提出了一种基于Gabor谱的未知跳频信号参数盲估计方法。该方法利用Gabor谱能量集中、时频分辨率高、交叉项干扰小的特点,在未知任何先验参数的情况下,能够准确估计出跳频信号的跳频频率、跳变时刻和跳频信号驻留时间等参数。通过计算机仿真得到了较为准确的估计结果,验证了该算法的有效性。
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| 关 键 词： | Gabor谱 跳频 参数盲估计 时频分析 |
| 文章编号： | 1009-086X(2007)-04-0089-06 |
| 修稿时间： | 2006年12月5日 |
Blind Parameter Estimation of Frequency-Hopping Signals Based on Gabor Spectrum |
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| ZHANG Xi,DU Xing-min,YAN Tao.Blind Parameter Estimation of Frequency-Hopping Signals Based on Gabor Spectrum[J].Modern Defence Technology,2007,35(4):89-94. |
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| Authors: | ZHANG Xi DU Xing-min YAN Tao |
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| Abstract: | A new method based on Gabor Spectrum to estimate the parameters of unknown frequency hopping(FH) signal was proposed.Considering the advantages of concentration of energy,high resolution in time-frequency domain and eliminating cross-terms interference,the parameters of FH signals can be estimated such as hop timing,hopping frequencies and hop duration without knowing any a priori knowledge.The simulation results show that the proposed method could estimate the FH parameters effectively. |
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| Keywords: | Gabor spectrum frequency hopping blind parameter estimation time-frequency analysis |
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