Time-of-flight estimation using extended matched filtering

被引:2
|
作者
van der Heijden, F [1 ]
van Koningsveld, S [1 ]
Regtien, PPL [1 ]
机构
[1] Univ Twente, Enschede, Netherlands
关键词
ToF estimation; reflection model; time-of-flight;
D O I
10.1109/ICSENS.2004.1426462
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The problem considered is the estimation of the ToF (time-of-flight) of an acoustic tone burst in a reflective environment. Secondary echoes cause a complex interference pattern. Only the ToF of the first echo is of interest. Conventional matched filtering (MF) cannot cope with overlapping echoes. An explicit model for overlapping echoes leads to a generalized MF consisting of a parallel bank of filters rather than just a single filter. The new method is evaluated with a dataset of 150 records of observed waveforms using 3-fold cross validation.
引用
收藏
页码:1460 / 1463
页数:4
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