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Active Control of Vehicle Powertrain Noise Applying Frequency Domain Filtered-x LMS Algorithm

Abstract Details

2009, MS, University of Cincinnati, Engineering : Mechanical Engineering.
Vehicle powertrain noise is a major consideration in the design and manufacture of motor vehicles. In current practices, passive noise control treatment is still widely applied. However, passive noise control technology is often not effective in the low frequency range inside the passenger compartment where the response at low frequency is typically more dominant compared to the high frequency content. With the rapid development of digital signal processing, active noise control can be a feasible alternative to tackle powertrain noise. However, traditional time domain filtered-x least mean square (FXLMS) algorithms possess limitations, especially in the case where the length of the adaptive controller is large or the amplitude of reference signal is difficult to change. To address this problem, an enhanced, frequency domain filtered-x least mean square (LMS) algorithm is proposed as the basis of an active control system for treating powertrain interior noise. Compared to the time domain algorithms, the approach can save computing time and have the capacity of faster convergence. Furthermore, unlike traditional active noise control techniques for suppressing response, the proposed frequency domain FXLMS algorithm is targeted at tuning vehicle interior response in order to achieve a desirable sound quality. Several frequency domain algorithms are studied numerically by applying the analysis to treat vehicle interior noise recorded from an actual vehicle.
Teik Lim (Committee Chair)
David Thompson (Committee Member)
Mark Schulz (Committee Member)
55 p.

Recommended Citations

Citations

  • Duan, J. (2009). Active Control of Vehicle Powertrain Noise Applying Frequency Domain Filtered-x LMS Algorithm [Master's thesis, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1243614246

    APA Style (7th edition)

  • Duan, Jie. Active Control of Vehicle Powertrain Noise Applying Frequency Domain Filtered-x LMS Algorithm. 2009. University of Cincinnati, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ucin1243614246.

    MLA Style (8th edition)

  • Duan, Jie. "Active Control of Vehicle Powertrain Noise Applying Frequency Domain Filtered-x LMS Algorithm." Master's thesis, University of Cincinnati, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1243614246

    Chicago Manual of Style (17th edition)