Title :
Measures against noise in sensors for prediction of large seismic waves
Author :
Chiba, Jiro ; Nemoto, Yoshiaki
Author_Institution :
Tohoku Inst. of Technol., Sendai, Japan
Abstract :
The paper outlines the measures against noise in detectors for prediction of large seismic waves. According to Einstein´s general theory of relativity, gravitational field turbulence is propagated by light velocity 3×108 (m/s), but on the other hand, the seismic wave itself is propagated by elastic wave velocity 7×10 3 (m/s). Accordingly, gravitational field turbulence due to a seismic wave reaches an observer instantaneously, whereas the seismic wave arrives much later. Prediction of a large seismic wave can therefore be achieved by observing the gravitational field turbulence. During the observation, optimum filtering plays an important role
Keywords :
filtering theory; geophysical signal processing; gravitational wave detectors; gravitational waves; interference suppression; seismic waves; Einstein; detectors; elastic wave velocity; gravitational field turbulence; large seismic wave prediction; light velocity; optimum filtering; theory of relativity; Cutoff frequency; Frequency measurement; Noise measurement; Phase distortion; Power harmonic filters; Propagation losses; Seismic measurements; Seismic waves; Shape measurement; Signal to noise ratio;
Conference_Titel :
Security Technology, 1995. Proceedings. Institute of Electrical and Electronics Engineers 29th Annual 1995 International Carnahan Conference on
Conference_Location :
Sanderstead
Print_ISBN :
0-7803-2627-X
DOI :
10.1109/CCST.1995.524906