| 舰船磁场信号的频域分析 |
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| 引用本文： | 刘昌锦,叶平贤.舰船磁场信号的频域分析[J].海军工程大学学报,1992(4). |
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| 作者姓名： | 刘昌锦 叶平贤 |
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| 作者单位： | 合肥炮兵学院，海军工程学院海军兵器工程系 |
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| 摘 要： | 本文采用修正的周期图法(Welch法)对舰船磁场信号进行了功率谱估计并给出归一化曲线。在此基础上,提取了频域特征量,利用特征频率f_H进行了目标舰船速度的识别研究。计算机仿真表明,正识率可达95％以上。
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| 关 键 词： | 舰船磁场 特征频率 舰船速度识别 |
Periodogram Analysis of Ship's Magnetic Signals |
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| Liu Changjin Ye Ping xian.Periodogram Analysis of Ship''''s Magnetic Signals[J].Journal of Naval University of Engineering,1992(4). |
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| Authors: | Liu Changjin Ye Ping xian |
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| Institution: | Liu Changjin Ye Ping xian |
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| Abstract: | in this paper, an improved periodogram analysis proposed by Welch is used to estimate power spectrum of ship's magnetic signals, and some normalized characteristic curves are given. On the basis of analysis, this paper puts forward a feature in frequency domain and researches into identification of the velocity of the target ship by the feature frequency fu. The statistical results of computer simulation show that the probability of right identification is above 95%. |
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| Keywords: | Ship's magnetic field Feature frequency Identification of ship's velocity |
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