| 双谱时延估计在被动测距中的应用 |
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| 引用本文： | 彭阐,姜可宇.双谱时延估计在被动测距中的应用[J].船电技术,2012,32(6):38-40. |
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| 作者姓名： | 彭阐 姜可宇 |
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| 作者单位： | 海军工程大学,武汉,430033 |
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| 摘 要： | 时延估计是被动测距声纳实现目标精确定位的关键。本文在介绍互相关法时延估计的基础上,重点研究了双谱时延估计方法在被动测距中的应用。理论分析和仿真实验结果表明,相比互相关法时延估计,双谱法时延估计具有时延估计精度高、误差小、对高斯噪声的抑制能力强等优点。
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| 关 键 词： | 被动测距 双谱时延估计 互相关 时延估计精度 |
Application of Bispectrum Time-delay Estimation in Passive Ranging |
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| Peng Chan, Jiang Keyu.Application of Bispectrum Time-delay Estimation in Passive Ranging[J].Marine Electric & Electronic Technology,2012,32(6):38-40. |
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| Authors: | Peng Chan Jiang Keyu |
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| Institution: | (Naval university of engineering,Wuhan 430033, China) |
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| Abstract: | Time delay estimation is the key for the passive ranging sonar to achieve accurate positioning. The paper mainly researches the application of bi-spectrum time-delay estimation to passive ranging on the basis of introducing correlated time-delay estimation. According to the theoretical analysis and simulation results, bi-spectrum time-delay estimation has many advantages compared to the correlated time-delay estimation, such as accurate time-delay estimation, smaller error and better capability to remove Gaussian noise. |
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| Keywords: | passive ranging bi-spectrum time-delay estimation mutual correlation time-delay estimation |
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