METADATA IN ENGLISH

About the journal

SEISMICHESKIE PRIBORY, ISSN: 0131-6230, eISSN: 2312-6965, DOI: 10.21455/si,

http://elibrary.ru/title_about.asp?id=25597

English Translation: Seismic Instruments, ISSN: 0747-9239 (Print) 1934-7871 (Online),

https://link.springer.com/journal/11990

Synthesis of optimal piecewise linear sweep signal
for vibration seismic sounding

V.I. Yushin1, S.S. Polozov1, A.S. Kharlamov2

1 Trofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch
of the Russian Academy of Sciences, Novosibirsk, Russia

2 Siberian Geophysical Service LLC, Novosibirsk, Russia

Corresponding author: V.I. Yushin, YushinVI@ipgg.sbras.ru

Abstract. It is proposed and proved the method of a calculation of the frequency sweep which provides a flat spectrum of target wave correlogram regardless of natural vibrational source amplitude-frequency response disturbances which is brought by a media and a source it self. Such a spectrum provides a base for a reaching a maximum resolution of close located wave pulses in a resulting seismogram. The method includes a test sounding of a typical seismological object by a some linear sweep in the preferred frequency range, selection and spectral analysis of the target wave vibrogram, division of the resulting spectrum in to a multiple of a narrow frequency bands and a calculation of a linear sweep for each of the band. The design of a continuous sequence of the mentioned partial sweeps is the resulting operation of an adaptive nonlinear (linear in parts) sweep synthesis. The necessary conditions which provide the correctness of a partial sweeps coupling is founded and formulated in the article.

Keywords: frequency sweep, sweep-signal, nonlinear sweep, adaptive sweep, piecewise linear sweep, reference signal, control signal, vibrogram, correlogram

About the authors

YUSHIN Vyacheslav Ivanovich – Doctor of Technical Sciences, Associate Professor, Leading Researcher, Trofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch of the Russian Academy of Sciences (IPGG SB RAS). 630090, Novosibirsk, Akademika Koptyug ave, 3. Phone: +7(383) 330-39-52. E-mail: YushinVI@ipgg.sbras.ru

POLOZOV Stanislav Sergeevich – Leading Electronics Engineer, Trofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch of the Russian Academy of Sciences. 630090, Novosibirsk, Akademika Koptyug ave, 3. Phone: +7 (383) 330-39-52. E-mail: i386@ngs.ru

KHARLAMOV Aleksey Sergeevich – Chief Geophysicist, Siberian Geophysical Service LLC. 630007, Novosibirsk, st. Sibrevkoma, 7/1. Phone: +7(383) 218-09-19. Email: seisgeo@gmail.com

Cite this article as: Yushin V.I., Polozov S.S., Kharlamov A.S. Synthesis of optimal piecewise linear sweep signal for vibration seismic sounding, Seismicheskie Pribory, 2019, Vol. 55, no. 4, pp. 29–39. (in Russian). https://doi.org/10.21455/si2019.4-3

English translation of the article will be published in Seismic Instruments, ISSN: 0747-9239 (Print) 1934-7871 (Online), https://link.springer.com/journal/11990), 2020, Volume 56.