Paper Info
Title
Separation of forward and backward acoustic waves in a car exhaust by array processing
Abstract
We present a new interdisciplinary application of digital signal processing and its results in comparison with the application of classical methods. The problem is the separation of two acoustic waves propagating along an exhaust pipe. It has been proved that the use of the array signal processing technique-signals are registered by an array of sensors placed along the pipe and processed by means of the LCMV beamformer-has achieved very good results under bad conditions such as uncertainty in the knowledge of the propagation speed. The array technique has also been applied to the separation of two pressure waves generated by the discharge of a fuel injection pump. In this case the results have been good but a preprocessing must be done due to the pulse characteristics of these pressure waveforms
Year
DOI
Venue
1995
10.1109/ICASSP.1995.480590
Acoustics, Speech, and Signal Processing, 1995. ICASSP-95., 1995 International Conference
Keywords
Field
DocType
acoustic arrays,acoustic signal processing,acoustic wave propagation,array signal processing,automobiles,LCMV beamformer,acoustic waves separation,array signal processing,backward acoustic waves,car exhaust,classical methods,digital signal processing,exhaust pipe,forward acoustic waves,fuel injection pump,preprocessing,pressure waveforms,pressure waves separation,propagation speed uncertainty,pulse characteristics
Signal processing,Digital signal processing,Array processing,Surface acoustic wave sensor,Computer science,Sensor array,Artificial intelligence,Underwater acoustic communication,Pattern recognition,Speech recognition,Acoustics,Acoustic wave,Acoustic interferometer
Conference
Volume
ISSN
ISBN
3
1520-6149
0-7803-2431-5
Citations 
PageRank 
References 
2
0.67
1
Authors
2
Name
Order
Citations
PageRank
Gema Pinero161.91
Luis Vergara2243.05