Method for continuous determination of acoustic quality of road from noise into toroidal area of smooth tire in flowing traffic area, involves determining outdistancing and texture levels as acoustic quality characteristics of road lining

摘要

The method involves determining a 7.5 m outdistancing level and a texture level with a series of m-digital single mass-resonators with resonant frequency and a stage ratio as parallel resonators for a torus-noise, and with spectral transfer functions as acoustic quality characteristics of a road lining. A time discrete torus signal given as a road section is acted at a spring (C) of the single mass-resonators. A deflection, momentary resonant energy and a momentary power are determined by digital integration and assigned to spectral power density of the torus signal.