X. Pang¹ , J. Teng¹ , Y. Cheng¹ , X. Cheng¹

¹State Key Laboratory, NBC Protection for Civilian

Abstract:

This paper analyzes the characteristics of disturbing incident in the infrasound detection of nuclear explosion. After data preprocessing, such as mean removal, atmospheric disturbance removal, filtering and normalization, etc., the infrasound signal characteristics of lightning, chemical explosion and satellite launch events are analyzed through spectrum and statistical methods. Finally, spectrum characteristics of disturbing incident infrasound signal are obtained according to statistical conclusions. The analysis results show that the acquired infrasound signal characteristics of lightning, chemical explosion and satellite launch event are different from those of nuclear explosion, and this characteristic value can be used as one of the feature vectors of nuclear explosion infrasound detection and recognition.