| 强噪声背景下微弱信号检测方法研究 |
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| 引用本文： | 杨新峰,杨迎春,苑秉成.强噪声背景下微弱信号检测方法研究[J].舰船电子工程,2005,25(6):123-125. |
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| 作者姓名： | 杨新峰 杨迎春 苑秉成 |
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| 作者单位： | 海军工程大学兵器工程系,武汉,430033 |
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| 摘 要： | 研究了用于微弱信号检测的自相关法、多重自相关法及双谱估计法，并介绍了各种技术的算法及特点。最后利用Matlab进行仿真并对仿真结果进行比较，结果表明：双谱估计检测法在检测强噪声背景下微弱信号方面对噪声有较强的抑制能力，能有效地检测出微弱信号。
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| 关 键 词： | 信号检测 微弱信号 自相关 多重自相关 双谱估计 |
| 收稿时间： | 2005-05-19 |
| 修稿时间： | 2005-06-21 |
Study on Weak Signal Detection Method in A Stronger Noise Backgroung |
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| Yang Xinfeng,Yang Yingchun,Yuan Bingcheng.Study on Weak Signal Detection Method in A Stronger Noise Backgroung[J].Ship Electronic Engineering,2005,25(6):123-125. |
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| Authors: | Yang Xinfeng Yang Yingchun Yuan Bingcheng |
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| Institution: | Department of Weapon Engineering, Naval University of Engineering,Wuhan 430033 |
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| Abstract: | Methods of auto correlation, multi- layer autocorrelation and bispectrum estimation that can be used in weak signal detection are studied in this paper with algorithm, and characteristics of each technology, Simulation is made by using MatLab and the results are compared with each means. Simulation results show that bispectrum estimation can restrain noise strongly, detect weak signal effectively. |
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| Keywords: | signal detection weak signal auto correlation multi - layer autcmorrelation bispectrum estimation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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