Journals
  Publication Years
  Keywords
Search within results Open Search
Please wait a minute...
For Selected: Toggle Thumbnails
《Application of DAMAS Method of Microphon Array for Measurement of Airplane Noise》
SUN Shuang;QIAO Wei-yang;HUANG Xiao-dan
   2009, 29 (5): 121-126.  
Abstract2561)      PDF(pc) (1595KB)(1081)       Save

A newlydeveloped method for microphone array  deconvolution method (Deconvolution Approach for the Mapping of Acoustic Sources, DAMAS) is introduced in this paper. Deconvolution method makes beamforming as preprocessing and extracts useful soundsource information from it. Then, a more accurate result can be obtained. Firstly, an experiment of noise measurement for the plane operating in static is carried out based on the microphone array, and the result is analyzed. The analysis is used to validate the feasibility and precision of the deconvolution method. Moreover, an average Doppler frequencyshift factor combined with the deconvolution method is applied to measure the overhead plane noise. The measurement result is compared with that by using traditional method.

Related Articles | Metrics