Exploitation of Seismograph NetworksCompte-rendus de NATO Advanced Study Institute tenu ā Sandefjord, Norway du 22 avr. - 3 mai 1974, sous les auspices de Cransfield Institute NATO Advanced Study Institute on the Exploitation of Seismograph Networks, Sandefjord, Norway, 1974. |
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amplitude analysis ARPA Network ARPANET array data arrival Astr average azimuth beam beamforming channels Christoffersson coherent complexity component Computed seismogram computer network correlation cross-correlation curve depth detector discriminants distance dT/d earth earthquakes effects epicentral equation error estimate event detection explosions and earthquakes false alarm filter Fourier frequency function Geophys Host Husebye incoherent input interface Interface Message Processor LASA layers magnitude matrix measurements method noise NORSAR observed obtained operation output P-wave packet switching parameters phases plotted processing Processor programs protocol pulse random Rayleigh waves recorded region Research sample scattering sec/deg Seism seismic array seismic events seismic signals seismic waves seismograms seismological seismometer sensors short period shown in Figure slowness source crust spectral spectrum structure surface waves tape techniques terminal threshold tion travel-time upper mantle values vector velocity wavenumber Yellowknife