| 基于广义互相关法的水下被动测距时延估计技术 |
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| 引用本文： | 盛成明. 基于广义互相关法的水下被动测距时延估计技术[J]. 舰船电子工程, 2011, 31(5): 149-152 |
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| 作者姓名： | 盛成明 |
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| 作者单位： | 海军七○二厂,上海,200434 |
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| 摘 要： | 针对被动测距的性能严重依赖于时延的估计精度,提出设计一种基于广义互相关法的高精度的时延估计器,分析了时延估计器原理,得出了测距时延差ε的真值,仿真分析时采用时延差内插算法,对四点内插法时延估计精度进行了分析,满足了实际需求。
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| 关 键 词： | 广义互相关法 被动测距 时延估计 |
Underwater Passive Ranging and Estimation Technology Based on Generalized Cross Correlation Method |
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| Sheng Chengming. Underwater Passive Ranging and Estimation Technology Based on Generalized Cross Correlation Method[J]. Ship Electronic Engineering, 2011, 31(5): 149-152 |
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| Authors: | Sheng Chengming |
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| Affiliation: | Sheng Chengming(Navy 702 Factory,Shanghai 200434) |
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| Abstract: | Passive ranging performance is heavily dependent on the delay estimation accuracy.A high-precision time delay estimator based on generalized cross correlation method is proposed,which has analyzed the principle of time delay estimator.The true value ε of ranging delay differential is obtained.Simulation used interpoiation algorithm of delay differential.The accuracy of time delay estimation by four-point interpolation method is analyzed.It indicates that the method meets the practical needs. |
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| Keywords: | generalized cross correlation method passive ranging delay estimation |
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