COMBINED NOISE SIMULATION METHOD AND COMBINED NOISE SIMULATION SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a combined noise simulation method and a combined noise simulation system, capable of combining noises different in the frequency of occurrence or duration. SOLUTION: The time fluctuation data of the sound pressure level of various sound sources on a digital map 14 are measured, and a wave form pattern database 11 which is brought together into a single wave form with the approximately the same time fluctuation data and a typal data base 13 are prepared. The combined noise at a prescribed position on the digital map 14 is obtained, by combining the wave form patterns propagated from each noise source to the prescribed position. COPYRIGHT: (C)2005,JPO&NCIPI