Rammstein Concert-Induced Seismicity Signal Filtering by Time-Frequency Analysis

• Published in: IEEE geoscience and remote sensing letters Vol. 21; pp. 1 - 5
• Main Authors: Mendecki, Maciej J., Abratkiewicz, Karol
• Format: Journal Article
• Language: English
• Published: Piscataway IEEE 2024; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Ambient noise; Band-pass filters; Concerts; Filtering; Filtration; Frequency analysis; Frequency dependence; Harmonic analysis; Lissajous curves; man-made seismicity; Power harmonic filters; Resonant frequency; Seismicity; Signal quality; Signal to noise ratio; spectral analysis; Spectrogram; Spectrograms; Time-frequency analysis; Urban areas; urban seismology; Vibration; Vibration analysis; Vibrations; Waveforms
• ISSN: 1545-598X; 1558-0571
• DOI: 10.1109/LGRS.2024.3485772

In this letter, the focus is on vibration related to Rammstein concerts, which took place in July 2023 at the Silesian Stadium, Poland. First, the concert-induced signals underwent preliminary study in the time domain (waveforms) and the time-frequency domain (spectrograms). Next, the investigation was improved by filtering, allowing for better ambient noise band interpretation. The signal quality enhancement was confirmed by frequency and time-frequency metrics. Finally, after the filtering, Lissajous curves (2-D motion) were produced, clearly indicating the significant improvement of the signal filtering.