Super-resolution time delay estimation based on all-phase narrow-band filtering

被引：0
|
作者：
Yan, Ge [1 ]
Huang, Xiangdong [1 ]
Liu, Kaihua [1 ]
机构：
[1] School of Electronic Information Engineering, Tianjin University
来源：
Tianjin Daxue Xuebao (Ziran Kexue yu Gongcheng Jishu Ban)/Journal of Tianjin University Science and Technology | 2014年 / 47卷 / 03期
关键词：
All-phase; Narrow-band filter; Super-resolution; Time delay estimation;
D O I：
10.11784/tdxbz201206042
中图分类号：
学科分类号：
摘要：
To enhance the anti-noise performance of super-resolution time delay estimators, one novel time-delay estimator based on all-phase narrow-band filtering was proposed. First, based on the design of notching filter, a narrow-band filter characterized with similar point-pass transfer curve was designed. Secondly, two sequences with delay relationship were processed by this filer. Finally, implementing conventional phase-difference estimating flow yielded a high-precision time delay estimation. Simulation results showed that, compared with the gravityinterpolation method, the proposed method enlarges the SNR application range by 10 dB. Therefore the proposed method has a wide prospect of applied engineering.
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收藏
页码：249 / 254
页数：5
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