| 水中目标信号的实时检测方法研究 |
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| 引用本文： | 姜礼平,龚沈光.水中目标信号的实时检测方法研究[J].海军工程大学学报,2003,15(6):40-43. |
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| 作者姓名： | 姜礼平 龚沈光 |
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| 作者单位： | 1. 海军工程大学,基础部,湖北,武汉,430033
2. 海军工程大学,兵器工程系,湖北,武汉,430033 |
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| 基金项目： | 海军工程大学基础科研基金资助课题 |
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| 摘 要： | 在对目标信号及噪声背景信号的特性进行分析的基础上,依据目标信号功率主要集中在低频部分的特点,用功率谱估计方法提取低频信号的能量作为特征,对信号滑动地进行目标检测.通过不同浪级情况下海洋水压力场的仿真信号数据,对某型目标舰船的水压力信号进行了检测计算,验证了该方法的有效性,尤其是达到了在高海况、低信噪比条件下,对目标信号正确的检测.
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| 关 键 词： | 功率谱估计 特征提取 实时检测 |
| 文章编号： | 1009-3486(2003)06-0040-04 |
| 修稿时间： | 2003年1月22日 |
Research on real-time detection of underwater target signal |
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| JIANG Li-ping.Research on real-time detection of underwater target signal[J].Journal of Naval University of Engineering,2003,15(6):40-43. |
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| Authors: | JIANG Li-ping |
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| Institution: | JIANG Li-ping~ |
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| Abstract: | The characteristic extraction is crucial to detection of the target signal. Based on analyzing target signal and noise signal by power spectrum estimation, a feature extraction method is proposed in this paper. The feature variable consists of energy of lower frequencies signal. The effectivenessof the method is verified by a real target signal with additive simulated noise signal, especially under the high sea state and condition of low SNR. |
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| Keywords: | power spectrum estimation feature extraction real-time detection |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
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