Currently, many complaints have been filed by local residents on helicopter noise while the law on noise prevention and damage compensation at military airfields and military ranges has been in effect since November 27, 2020. The airfields operated by state agencies are inevitably used to defend the country, defend the country, and protect the lives of the people, but various efforts are needed to minimize noise complaints. In general, helicopters operating in a specific area exhibit different noise frequencies depending on the number or size of wings for each type, takeoff speed, and takeoff altitude. Therefore, by measuring and analyzing noise in the take-off stage of a number of helicopters operating in a specific area, this study aims to present more effective noise prevention measures by analyzing the compliance of each type of helicopter with variables such as take-off speed, take-off altitude, and rise rate. Therefore, the results of this study will be significant in terms of resolving complaints and reducing compensation expenditures of local residents around the airport.

Aircraft noise loss in residential areas around small heliports is becoming more and more serious. Under the condition of long-term exposure to aircraft noise, it will not only cause physical and mental harm to human body, but also cause social and economic losses to the living environment around the airport. Therefore, it has been a serious contradiction factor in the community for a long time. This study points out the impact of noise caused by helicopter flying in aviation brigade of small heliport on the nearby residence area, The fixed noise monitoring system is set up to measure the aircraft noise every day. and selects the measurement site to facilitate the impact of noise caused by helicopter flight on the surrounding life.

The area around a certain airbase was affected by the noise of military helicopters, which seriously reduced the quality of the living environment in the surrounding area. In this paper, an automatic noise measurement system is set at 3 measurement points around the flight path of the 00 flight field. The fixed noise monitoring system is set up to measure the aircraft noise every day。 and selects the measurement site to facilitate the impact of noise caused by helicopter flight on the surrounding life. There is also a manual noise level measurement of the helicopter's maximum noise level for 7 days at 3 locations. Calculate the WECPNL value of 3 measuring points. Analyze the correlation between the aircraft noise evaluation unit WECPNL-Lden.