Title :
Applying time-frequency methods to pressure and structure-borne sound for combustion diagnosis
Author :
Carstens-Behrens, Sonke ; Bohme, Johann F.
Author_Institution :
Dept. of Electr. Eng. & Inf. Sci., Ruhr-Univ. Bochum, Germany
Abstract :
This work presents the application of three different time-frequency methods to pressure and structure-borne sound signals to improve combustion diagnosis of internal combustion engines. Increasing engine efficiency and reduction of pollutants imply enhanced knowledge of the combustion process. The methods presented deepen the understanding of the measured signal and stimulate improved algorithms for knock detection
Keywords :
acoustic signal detection; acoustic signal processing; internal combustion engines; pressure sensors; time-frequency analysis; Wigner-Ville spectrum; cars; combustion diagnosis; engine efficiency; internal combustion engines; knock detection algorithms; measured signal; pollutants reduction; pressure sensor; pressure signals; resonance energy estimation; signal models; structure-borne sound; structure-borne sound signals; subspace method; time-frequency methods; Acceleration; Acoustic sensors; Acoustic signal detection; Combustion; Engines; Frequency estimation; Pollution measurement; Resonance; Signal processing; Time frequency analysis;
Conference_Titel :
Signal Processing and its Applications, Sixth International, Symposium on. 2001
Conference_Location :
Kuala Lumpur
Print_ISBN :
0-7803-6703-0
DOI :
10.1109/ISSPA.2001.949826
