| 基于WVD-HT的宽带调频信号检测技术研究 |
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| 引用本文： | 熊刚,赵惠昌,王李军.基于WVD-HT的宽带调频信号检测技术研究[J].电子学报,2004,32(12):1937-1940. |
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| 作者姓名： | 熊刚 赵惠昌 王李军 |
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| 作者单位： | 哈尔滨工程大学水声工程学院,黑龙江哈尔滨 150001 |
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| 摘 要： | 本文研究高斯白噪声背景下和混响背景下基于Wigner-Ville Distribution -Hough Transform (WVD-HT)时频分析方法的主动声呐宽带LFM脉冲信号的检测问题.给出了理论实现方法和相应的仿真结果.分析结果表明:WVD-HT方法在信噪比为-20dB左右仍可很好的抵消干扰背景,取得了比较理想的LFM检测效果.这一结果远优于拷贝相关器的性能.
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| 关 键 词： | WVD Hough变换 宽带调频信号检测 混响 |
| 文章编号： | 0372-2112(2004)12-1937-04 |
| 收稿时间： | 2003-09-29 |
The Correlation Detection Method of Radar Fuze in Sea Clutter |
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| XIONG Gang ,ZHAO Hui-chang ,WANG Li-jun.The Correlation Detection Method of Radar Fuze in Sea Clutter[J].Acta Electronica Sinica,2004,32(12):1937-1940. |
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| Authors: | XIONG Gang ZHAO Hui-chang WANG Li-jun |
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| Affiliation: | College of Underwater Acoustic Engineering,Harbin Engineering University,Harbin,Heilongjiang 150001,China |
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| Abstract: | Non-stationary stochastic fractal modeling of sea clutter and analysis and process based on WT are prevalently studied.The methods based on single fractal dimension and regardless of approximation coefficient (AC) and the correlation of wavelet coefficient (WC) behave badly because of the non-general fit and multi-fractal of sea clutter.This paper presents the fractal dimension estimation based on subsection linear interpolation and designs the Wiener Filter considering the AC and the correlation of WC.The method of wavelet-filter and correlation detection of radar-fuze signal is proposed,Theoretical analysis and experimental results proved the method is effective on gaining better SNR and improving the probability of the CFRP of radar fuze in the non-stationary stochastic noise. |
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| Keywords: | sea clutter fractal stochastic noise correlation detection radar fuze |
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