Wyniki wyszukiwania - BazTech

Ograniczanie wyników

1 Acta Geophysica Polonica

1 2003

Znaleziono wyników: 1

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: rotation seismographs

Sortuj według:

Ogranicz wyniki do:

Recording the seismic rotation waves: reliability analysis

Teisseyre R., Suchcicki J., Teisseyre K.

Acta Geophysica Polonica

2003

Vol. 51, nr 1

37-50

An estimation of reliability of seismic rotation waves is based on the data collected with the use of rotation horizontal seismographs; each rotation seismograph system consists of two anti-parallel seismographs. The test and working positions of the rotation seismographs enable us to use the filtering procedure in the FFT domain in order to approach the identity of seismograph responses for each system; this procedure is applied for the collected data. Reliability of records of seismic rotation waves is based on the estimated ranges of the mean square values of the errors (test position) and of the rotation and twist components (working position). In this way, we get a proof about the existence of seismic rotation waves, at least those rotation components of seismic waves which originate near the surface and close to the observation site. This proof may be very important for the earthquake engineering problems. The question of a possibility of reducing far-distance rotation effects, as those related to seismic source process, remains open.