[1]LI Xiaobin,YE Beng,YANG Jun,et al.Research on Comparison of Excitation Efficiency of Air Guns with Various Combinations in Water Reservoir[J].Journal of Seismological Research,2016,39(03):458-465.
Copy
Research on Comparison of Excitation Efficiency of Air Guns with Various Combinations in Water Reservoir
Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
39
Number of periods:
2016 03
Page number:
458-465
Column:
Public date:
2016-07-23
- Title:
- Research on Comparison of Excitation Efficiency of Air Guns with Various Combinations in Water Reservoir
- Keywords:
- air gun exciting; seismic signal; excitation efficiency; SNR; signal stacking
- CLC:
- P315.3
- DOI:
- -
- Abstract:
- In order to study the excitation characteristic of the air gun, and provide the reference for the chosen site and construction of the air gun transmitting seismic station, we take the excitation test of air guns with various combinations at the Binchuan Transmitting Seismic Station(TSS). Analyzing the selected test data,we found the following results:(1)The stacked air gun signals excited by the single gun for more than 100 times can be clearly recorded at the seismic station with an epicentral distance of 150 km.(2)The frequencies of signals excited by single and four air guns are basically same,and their corresponding attenuations are basically similar, however the RMS amplitude of the signal excited by four air guns is about 4 time as much as that of single air gun.(3)When the SNR of signal exited by single gun reaches 10 dB, the correlation coefficient of it could reach above 0.99.(4)The excitation efficiency ratio of signals excited by single gun and four guns is 1:4. The analysis result shows that the signal excited by single gun can be replaced by the combination signal excited by four guns in case of losing some efficiency.
- References:
- -
- Similar References:
Memo
-
Last Update:
1900-01-01