Infrasound Signal Analysis of Satellite Launch

This paper measures the infrasonic signal of a Satellite Launch event and analyzes the signal characteristics. Using four infrasonic sensors to finish the satellite launch event monitoring tests, the experimental results show that difference between the infrasonic signal of satellite launch event and the infrasonic signal of background is very clear, the signal amplitude is dozens times of the background in the range of tens of kilometers; the closer, the frequency distribution of the wider, almost throughout the infrasonic frequency range in the range of several kilometers; obvious frequency concentration by increasing distance, the frequency focus in 7-12Hz at 50 kilometers, and as the distance increases, the frequency down .