| 基于S方法熵测度优化的跳频信号参数估计 |
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| 引用本文： | 郭建涛,申义贤,刘力伟,王林.基于S方法熵测度优化的跳频信号参数估计[J].信阳师范学院学报(自然科学版),2011,24(3):319-322. |
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| 作者姓名： | 郭建涛 申义贤 刘力伟 王林 |
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| 作者单位： | 1. 信阳师范学院物理电子工程学院,河南信阳,464000
2. 信阳供电公司,河南信阳,464000 |
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| 基金项目： | 河南省教育厅自然科学基金项目，信阳师范学院高层次人才科研启动基金 |
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| 摘 要： | 提出一种S方法结合熵测度优化进行跳频信号参数估计的新方法.该方法在获取信号优化时频分布的基础上,基于时频平面设计参数估计算法,可以在不需要任何先验知识的情况下,估计出跳频周期、跳变时刻和跳频频率等参数.另外,在高斯噪声环境下对分析结果进行了仿真.结果表明,该方法对跳频信号的参数估计优于其他时频分析方法,减小了参数估计的偏差和估计方差,而且优化过程的复杂性也有所降低.
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| 关 键 词： | 熵测度 时频分析 跳频信号 |
Parameter Estimation of Frequency-Hopping Signals Based on Entropy Measure Optimization of S Method |
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| GUO Jian-tao,SHEN Yi-xian,LIU Li-wei,WANG Lin.Parameter Estimation of Frequency-Hopping Signals Based on Entropy Measure Optimization of S Method[J].Journal of Xinyang Teachers College(Natural Science Edition),2011,24(3):319-322. |
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| Authors: | GUO Jian-tao SHEN Yi-xian LIU Li-wei WANG Lin |
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| Institution: | GUO Jian-tao1,SHEN Yi-xian2,LIU Li-wei1,WANG Lin1(1.College of Physics and Electronic Engineering,Xinyang Normal University,Xinyang 464000,China,2.Xinyang Power Company,China) |
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| Abstract: | A method for estimating the parameters of frequency-hopping(FH) signals was described based on entropy measure optimization of S method(SM).This method designs parameter estimation algorithm after obtaining optimal time frequency distribution,which the parameter of FH signals such as hop during,hop timing and hop frequencies can be estimated without any a priori knowledge.In addition,the analytical results were simulated under Gaussian noise conditions.The results shown that the deviation and variance of es... |
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| Keywords: | entropy measure time frequency analysis frequency hopping signals |
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