1. Home
  2. Honda R&D Technical Review Vol.16 N...
  3. Locating Source of Vehicle Pass-by ...

Technical Review e-Book: Summary

Locating Source of Vehicle Pass-by Noise Using Beamforming Method

Article of Honda R&D Technical Review Vol.16 No.1


Aiming at reducing vehicle pass-by noise, attention was focused on an analysis method employing high-directivity remote noise source locating technology (beamforming method). The beamforming method is a measurement method that uses a combination of multi-channel sensor technology and signal processing technology. It features the ability to measure the overall noise source in a short time and also the ability to provide a visual indication of the noise source distribution. A study of the shape, arrangement and other specifications of the beamforming array for analyzing vehicle pass-by noise was carried out. Based on the results a noise source locating test was performed using both a dummy noise source and an actual vehicle. As a result (1) a noise source locating instrument that had the required locating accuracy and dynamic range was realized, and (2) it was confirmed by using this instrument to analyze vehicle pass-by noise that this method was effective for reducing noise.


(1) Sawai, et al.: Measurement method for contribution of pass-by noise, JSAE, Vol. 35, No. 12, p. 1428-1432 (1981)
(2) Kashiwagi, H., et al.: Development of Noise Measurement System Using Microphones Array in Anechoic Camber, JSAE, Vol. 936, p. 281-284 (1993)
(3) Sakamoto, I., et al.: Noise Source Identification on an Operating Vehicle by Acoustic Holography, JSAE, Vol. 953, p. 145-148 (1995)
(4) Fleszar, A.R.: Combining Vehicle and Test-Bed Diagnosis Information to Guide Vehicle Development for Pass-By Noise, SAE 2001-01-1565 (2001)
(5) Stoker, R.W., et al.: Investigations of Airframe Noise in Pressurized Wind Tunnels, AIAA/CEAS 2001-2107 (2001)
(6) Takano, Y.: Visualizing Noise Sources of High Speed Train, Japan Society of Mechanical Engineers, Vol. 99, No. 931, p. 433-436 (1996)
(7) Takano, Y.: Development of Visualization System for High-Speed Noise Source with a Microphone Array and a Visual Sensor, Inter Noise 2003 Seogwipo, Korea, August 25-28 (2003)
(8) Hald, J.: A class of optimal broadband phased array geometries designed for easy construction, Inter Noise 2002 Dearborn, MI, USA. August 19-21 (2002)

Author (organization or company)

Yukihiko HANZAWA(Tochigi R&D Center)、Jun KITAHARA(Tochigi R&D Center)、Shinichi NISHIMURA(Tochigi R&D Center)

We would like to get your opinion on this research paper. (This is only applicable to registered members.)

The readers of this research paper have also selected these research papers.

Research on Technique for Identification of Sound Source of Pass-by Noise Using Inverse Matrix Method
Article of Honda R&D Technical Review Vol.16 No.2
Development of Pass-by Noise Analysis Technology with Utilization of Engine Control Data
Article of Honda R&D Technical Review Vol.14 No.2
Development of Prediction Method for Evaluation of Transmission Case Noise Radiation Characteristics
Article of Honda R&D Technical Review Vol.17 No.1