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Modeling and Simulation of Road Noise by Using an Autoregressive Model
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 Title & Authors
Modeling and Simulation of Road Noise by Using an Autoregressive Model
Kook, Hyung-Seok; Ih, Kang-Duck; Kim, Hyoung-Gun;
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 Abstract
A new method for the simulation of the vehicle's interior road noise is proposed in the present study. The road noise model can synthesize road noise of a vehicle for varying driving speed within a range. In the proposed method, interior road noise is considered as a stochastic time-series, and is modeled by a nonstationary parametric model via two steps. First, each interior road noise signal, obtained from constant speed driving tests performed within a range of speed, is modeled as an autoregressive model whose parameters are estimated by using a standard method. Finally, the parameters obtained for different driving speeds are interpolated based on the varying driving speed to yield a time-varying autoregressive model. To model a full band road noise, audible frequency range is divided into an octave band using a wavelet filter bank, and the road noise in each octave band is modeled.
 Keywords
Road Noise Simulation;NVH Simulator;Nonstationary Parametric Model;Wavelet Filter Bank;Stochastic Time-series;
 Language
Korean
 Cited by
 References
1.
Lim, J.-T. and Lee, S.-K., 2007, Development of Sound Quality Index of a SUV' Axle for Evaluation of Enhancement of Sound Quality Based on Human Sensibility, Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 17, No. 4, pp. 298-309. crossref(new window)

2.
Park, S.-G., Lee, H.-J., Bae, C.-Y. and Oh, J.-E., 2008, Sound Quality Evaluation of Interior Noise of Driving Vehicle Using Mahalanobis Distance, Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 18, No. 1, pp. 57-60. crossref(new window)

3.
Allman-Ward, M., Venor, J., Williams, R., Cockrill, M., Distler, H., Crewe, A. and Heinz, T., 2003, The Interactive NVH Simulator as a Practical Engineering Tool, SAE Paper 2003-01-1505.

4.
Genuit, K., 2004, The Sound Quality of Vehicle Interior Noise: A Challenge for the NVH-Engineers, International Journal of Vehicle Noise and Vibration, Vol. 1, Nos. 1/2, pp. 158-168. crossref(new window)

5.
Kavarana, F., Taschuk, G., Schiller, T. and Bogema, D., 2009, An Efficient Approach to Improving Vehicle Acceleration Sound Quality using an NVH Simulator, SAE Paper 2009-01-2190.

6.
Bechhoefer, E. and Kingsley, M., 2009, A Review of Time Synchronous Average Algorithms, Annual Conference of the Prognostics and Health Management Society, San Diego, CA, Sept., pp. 24-33.

7.
Herlufsen, H., Gade, S., Konstantin-Hansen, H. and Vold, H., 1999, Characteristics of the Vold-Kalman Order Tracking Filter, Sound and Vibration, Vol. 33, pp. 34-44.

8.
Heitbrink, D. A. and Cable, S., 2009, Design of a Driving Simulation Sound Engine, Driving Simulation Conference, North America 2007(DSC-NA 2007).

9.
Ljung, L., 1999, System Identification: the Theory for the User, 2nd Ed., Prentice Hall PTR.

10.
Grenier, Y., 1983, Time-dependent ARMA Modeling of Nonstationary Signals, IEEE Transactions on Acoustics, Speech, and Signal Processing, Vol. ASSP-31, No. 4, pp. 899-911.

11.
Vetterli, M. and Kovacevic, J., 1995, Wavelets and Subband Coding, Prentice-hall.