| 谱校正技术在水下信号波达方向估计中的应用 |
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| 引用本文： | 李运周,王冀锋,姜春华.谱校正技术在水下信号波达方向估计中的应用[J].声学技术,2011(5):456-459. |
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| 作者姓名： | 李运周 王冀锋 姜春华 |
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| 作者单位： | 昆明船舶设备研究试验中心; |
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| 摘 要： | 针对具有不稳定强线谱特征的水下目标,提出了一种基于目标线谱校正技术的信号波达方向估计(Direction of Arrival,DOA)方法,该方法结合矩形窗谱校正技术和全相位修正方法对目标线谱参数进行估计,从而计算目标方位.对该技术进行了仿真研究,并应用于实际水下目标线谱方位估计和单频脉冲波(Cw波)的DOA估计中....
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| 关 键 词： | 波达方向估计 谱校正 相位修正 被动测向 |
| 收稿时间： | 2010/7/12 0:00:00 |
| 修稿时间： | 2010/10/30 0:00:00 |
DOA estimation for underwater signal based on spectrum correction technology |
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| LI Yun-zhou,WANG Ji-feng and JIANG Chun-hua.DOA estimation for underwater signal based on spectrum correction technology[J].Technical Acoustics,2011(5):456-459. |
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| Authors: | LI Yun-zhou WANG Ji-feng and JIANG Chun-hua |
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| Affiliation: | LI Yun-zhou,WANG Ji-feng,JIANG Chun-hua(Kunming Shipborne Equipment Research and Test Center,Kunming,650051) |
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| Abstract: | Aimed at underwater targets with unstable line spectrum,this paper discusses a DOA(Direction of Arrival) estimation method for underwater signal based on line spectrum correction technology.By correcting the frequency and phase of the signal with the same line spectrum,which is detected by a multi-elements line array,the DOA of the incident signal is accurately calculated.The results indicate that this technology has a good prospect of application in the DOA estimation of underwater target and CW wave sourc... |
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| Keywords: | direction of arrival estimation spectrum correction phase correction passive direction finding |
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