Name : [in Japanese]
Date : July 07, 2022 - July 08, 2022
With the sophistication of living environment, the number of high-rise buildings such as high-rise buildings, high-rise roads, and exhaust towers is increasing, and noise sources and noise receivers are spreading to high-rise buildings. Therefore, we proposed a noise measurement method for drones, which has been increasingly used in recent years. It has been confirmed that the self-noise of a small drone depends on the rotation of the rotor shaft and has high reproducibility for each rotation. Therefore, it was confirmed that the self-noise of one axis can be estimated with high accuracy by the method of synthesizing from the self-noise of one rotation of the rotor recorded in advance. By that method, we attempted to remove self-noise from the environmental noise measured by the drone by estimating the self-noise of all four axes for the drone in flight. In this paper, we report on the development status of environmental noise recording technology using this method.
