Time-of-flight estimation using extended matched filtering

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. A...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	van der Heijden, F., van Koningsveld, S., Regtien, P.P.L.
Format:	Tagungsbericht
Sprache:	eng
Schlagworte:	Acoustic reflection Acoustic waves Bandwidth Chirp Communication, education, history, and philosophy Distance measurement Echo interference Exact sciences and technology Filter bank Filtering General equipment and techniques Instruments, apparatus, components and techniques common to several branches of physics and astronomy Matched filters Physics Physics literature and publications Sensors (chemical, optical, electrical, movement, gas, etc.) remote sensing Transmitters
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	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.
DOI:	10.1109/ICSENS.2004.1426462