| 基于互模糊函数的宽带信号时差估计 |
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| 引用本文： | 刘洁,应武. 基于互模糊函数的宽带信号时差估计[J]. 电子信息对抗技术, 2004, 19(5): 7-9 |
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| 作者姓名： | 刘洁 应武 |
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| 作者单位： | 西安电子科技大学,西安,710071 |
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| 摘 要： | 提出了一种新的高精度时差估计算法。传统的直接互相关测时差法,在低信噪比时的测量精度较差,不能满足高精度估计的要求。这种基于互模糊函数的算法与传统的直接互相关法相比,更适用于低信噪比情况下的时差估计。
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| 关 键 词： | 互模糊函数 宽带信号 时差估计 |
| 文章编号： | CN51-1418(2004)05-0007-03 |
| 修稿时间： | 2003-09-10 |
The Time Delay Estimation of Wide-band Signal Using Cross-Ambiguity Function |
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| LIU Jie,YING Wu. The Time Delay Estimation of Wide-band Signal Using Cross-Ambiguity Function[J]. , 2004, 19(5): 7-9 |
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| Authors: | LIU Jie YING Wu |
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| Abstract: | A new approach is proposed for high resolution estimation of non-stationary time delay. Traditional direct cross-correlation for time delay estimation has a poor performance when SNR is low, and doesn't satisfy the demand of high resolution estimation. The method, based on cross-ambiguity function, is more suitable for time delay estimation in low SNR. |
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| Keywords: | cross-ambiguity function wide-band signal time delay estimation |
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