| 一种估计船舶辐射噪声线谱的联合分析法 |
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| 引用本文： | 王盼盼,王鹏,张国军. 一种估计船舶辐射噪声线谱的联合分析法[J]. 测试技术学报, 2010, 24(5). DOI: 10.3969/j.issn.1671-7449.2010.05.015 |
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| 作者姓名： | 王盼盼 王鹏 张国军 |
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| 作者单位： | 中北大学电子与计算机科学技术学院,山西,太原,030051 |
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| 基金项目： | 国家自然科学基金重点资助项目 |
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| 摘 要： | 线谱的提取为舰船的检测识别和方位跟踪提供了依据,研究线谱的提取具有实际的应用意义.采用Welch算法和Chirp-Z变换联合处理舰船的辐射噪声信号能够有效地提取线谱.根据对仿真信号和某实船的辐射噪声信号分析的结果表明,该方法原理简单,能够精确地提取特征线谱,其中频率分辨力可达0.36 Hz;根据所提取的船只的特征线谱,设定滤波区间对船辐射的噪声信号进行滤波,可以更准确地跟踪船的航迹.
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| 关 键 词： | 舰船辐射噪声 Welch算法 Chirp-Z变换 线谱提取 |
A United Method for Estimating Line Spectrum of Ship-Radiated Noise |
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| WANG Panpan,WANG Peng,ZHANG Guojun. A United Method for Estimating Line Spectrum of Ship-Radiated Noise[J]. Journal of Test and Measurement Techol, 2010, 24(5). DOI: 10.3969/j.issn.1671-7449.2010.05.015 |
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| Authors: | WANG Panpan WANG Peng ZHANG Guojun |
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| Affiliation: | WANG Panpan,WANG Peng,ZHANG Guojun(School of Electronics , Computer Science , Technology,North University of China,Taiyuan 030051,China) |
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| Abstract: | The characteristic spectral line provides a basis for the ship identification and location tracking,therefore,the research on extracting the characteristic line spectrum has important significance in practice.The method combining the Welch algorithm with the Chirp-Z transform can extract the spectral line from the ship-radiated noise effectively.Both the simulation signal and the real ship-radiated noise were analyzed.The results demonstrated that this method is convenient and able to extract the characteri... |
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| Keywords: | ship-radiated noise welch algorithm Chirp-Z transform line spectrum extraction |
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