| Popis: |
Wind noise is a form of pseudo-noise. It is generated and propagated by physical mechanisms that are different from acoustic noise; however, its effect on microphones and similar pressure sensitive devices is indistinguishable from acoustic noise. Wind noise is defined as the pressure fluctuations that are generated and propagated by the turbulent flow of an incompressible fluid. Acoustic noise is generated and propagated by the adiabatic compression and expansion of air. Since the effect of wind noise is the same as acoustic noise, it can have significant effect on the propagation and detection of desired acoustic signals at sonic and infrasonic frequencies. This can lead to adverse impacts on mass and early warning systems. This talk will present an overview of the effects of wind noise on outdoor sound propagation, detection, and efforts to mitigate and account for its influence on sonic and infrasonic acoustic signals. It will also discuss the potential impacts of sonic and infrasonic wind noise on ma... |
