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应用科学学报 ›› 2005, Vol. 23 ›› Issue (6): 557-562.

• 论文 • 上一篇    下一篇

基于时频图的跳频信号截获系统中的一种hop生成方法

范伟, 徐佩霞, 戴旭初   

  1. 中国科学技术大学电子工程与信息科学系, 安徽合肥 230027
  • 收稿日期:2004-08-18 修回日期:2004-11-18 出版日期:2005-11-30 发布日期:2005-11-30
  • 作者简介:范伟(1976-),男,上海人,博士,E-mail:fan.wei-3@zte.com.cn;徐佩霞(1941-),女,浙江宁波人,教授,博导,E-mail:pxxu@ustc.edu.cn

A Hop Generation Method for FH Signals Interception System Based on Spectrogram

FAN Wei, XU Pei-xia, DAI Xu-chu   

  1. Department of Electronics Engineering and Information Science, University of Science and Technology of China, Hefei 230027, China
  • Received:2004-08-18 Revised:2004-11-18 Online:2005-11-30 Published:2005-11-30

PDF

85

被引次数

5

摘要： 针对基于时频图的跳频信号截获系统,提出了一种hop生成方法,对该方法的hop生成性能进行了分析,推导出一种计算单一真实hop对驻留时间直方图的平均贡献的有效算法(SAHADTA算法),并给出了数值计算结果.理论分析和数值计算表明,该方法在低信号检测概率条件下,仍具有较好的hop生成性能,这将为各种基于hop的聚类分析提供一个可靠的保证.

关键词: 跳频信号截获, 时频图, hop生成, 驻留时间直方图, SAHADTA算法

Abstract: The paper presents a hop generation method for a frequency hopping (FH) signals interception system based on spectrogram.The hop generation performance of the proposed method is investigated, and the iterative SAHADTA algorithm that calculates the average contribution of a single actual hop to dwell-time histogram developed.A numeric example is also given.Theoretic analysis and the example show that the proposed method has good hop generation performance even under low signal detecting probability, making the hop-based clustering more reliable.

Key words: spectrogram, dwell-time histogram, hop generation, SAHADTA algorithm, interception of frequency hopping (FH) signal

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