Modeling of the octave sound spectrum emitted by the F-16 Block 52+aircraft during takeoff

The fundamental problem in the battle against aircraft noise on areas surrounding airports is to determine the sound pressure level in the audible frequency range as well as the composition of the noise spectrum. Today, we have tools enabling the modeling of the influence of noise on the environment. However, these models allow only a quantitative assessment. The authors propose to develop a model that enables an analysis of the sound frequency structure in airport nearby areas. Several noise measurements during the F-16 Block 52+ aircraft takeoffs were conducted using a unique recording system. Based on the sound data processing and proposed analysis, the novel octave sound spectrum (between 16 and 16000 Hz) model in distance function (till 1600 m) was elaborated. Moreover, the model was statistically verified and validated by more noise measurements which has proven high results efficiency (the residuum values do not exceed 3 dB).

Automated summary

The researchers proposed to develop a model that can analyze the sound frequency structure in airport nearby areas, and tested its feasibility by conducting noise measurements during aircraft takeoffs. The model, focusing on the distance function, performed well with statistically verified high efficiency.