杂波中信号检测的分形方法研究
THE STUDY OF SIGNAL DETECTION IN CLUTTER BY FRACTAL METHOD
-
摘要: 本文针对实测的雷达地杂波数据,利用其分形特性,提出基于分形各种特征的信号检测方法,并进一步利用多重分形的概念来提取杂波的多层次分形特征。均取得较好的检测性能。
-
关键词:
- 分形; 信号检测; 雷达杂波建模
Abstract: Real clutter data collected from land radar are fractally processed. Fractal-based methods for signal detection are presented, and the detector performances are given experimentally. Multifractal is also used to extract multilevel fractal features and further to signal detection. All the methods have better detecting performance. -
Jaggard D L, et al. Scattering from fractally corrugated surfaces, J. Opt. Soc. Am., 1990, A7(6): 1131-1139.[2]谢文录, 谢维信. 动态分形表面的电磁散射. 电子学报, 1998, 26(12): 49-51.[3]谢文录. 谢维信. 雷达杂波的分形特性研究. 系统工程与电子技术, 1999, 21(1): 41-44.[4]Haykin S. Detection of signals in chaos, Proc[J].IEEE.1995, 83(1):95-122[5]Lo T, Leung H, et al. Fractal characterisation of sea-scattered signals and detection of sea-surface targets, IEE Proc-F, 1993, 140(4): 243-250.[6] Kirk J C, et al. Using the fractal dimension to discremination between targets and clutter. IEEE National Radar Conference, America: 1993, 76-78.[6]谢文录, 谢维信. 时间序列中的分形分析和参数提取. 信号处理, 1996, 13(2): 97-104.[8] 黄立基, 丁菊仁. 多标度分形理论及进展. 物理学进展, 1991, 11(3): 269-325. -
计量
- 文章访问数: 1959
- HTML全文浏览量: 116
- PDF下载量: 523
- 被引次数: 0
下载:
