Engineering and Mining Geophysics 2020.
European Association of Geoscientists and Engineers, EAGE.
2020.
Inverse q sweep signal for broadband vibroseis acquisition
Inverse Q filtering procedure is usually applied to seismograms during processing stage for compensation of signal high frequencies loss and its phase dispersion. Recent developments in vibrator control electronics allow generating of frequency-modulated signal, which may vary its amplitude and phase spectra in broad frequency bandwidth. It is possible to preliminary construct and emit such sweep signal, which precedes following propagation effect depending on the Earth Q factor, thus provide higher S/N ratio for better further signal processing efforts. The purpose of this work was to demonstrate possibility and advantage of emitting inverse Q signal comparative to routine linear sweep signal generation followed by registered data signal processing. © 2020 Society of Exploration Geophysicists.
Authors
Korotkov I.
1
,
Zhukov A.
1
Conference proceedings
Publisher
Society of Exploration Geophysicists
Language
English
Pages
116-120
Status
Published
Volume
2020-October
Year
2020
Organizations
- 1 RUDN University, Russian Federation
Keywords
Data handling; Signal processing; Amplitude spectrum; Control electronics; Filtering procedures; Frequency modulated signal; High frequency loss; Inverse Q filtering; Phase spectrum; Phase-dispersion; Processing stage; Vibroseis; Q factor measurement
Date of creation
16.12.2021
Date of change
16.12.2021
Share
Other records
Proceedings of the 30th European Safety and Reliability Conference and the 15th Probabilistic Safety Assessment and Management Conference.
Research Publishing, Singapore.
2020.
P. 3074-3081