000010880 001__ 10880
000010880 005__ 20141205155812.0
000010880 04107 $$aeng
000010880 046__ $$k2008-10-12
000010880 100__ $$aMargaryan, Sos
000010880 24500 $$aOn the Stability of SPAC and Linear Array Methods

000010880 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000010880 260__ $$b
000010880 506__ $$arestricted
000010880 520__ $$2eng$$aThe modified SPAC methods such as 2sSPAC and linear array methods allow estimating shear wave structure by using only two sensors, but in these cases the instability problem of the spatial autocorrelation coefficient could arise in frequency range higher than 1Hz. We carried out observations in Tsukuba city, Japan, with four 25m arrays size. We also used 25m triangles’ sides as linear arrays. Results obtained from four 25m triangular arrays with four sensors, as well as from four 25m linear arrays with two sensors, showed good stability of SPAC coefficient for 2-4, 5Hz frequency range. To check the influence of the anthropogenic sources on the results of microtremor array observation the arrays were deployed in different distances from the road passing near by.

000010880 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000010880 653__ $$aSPAC, linear array, stability

000010880 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000010880 720__ $$aMargaryan, Sos$$iYokoi, Toshiaki
000010880 8560_ $$ffischerc@itam.cas.cz
000010880 8564_ $$s1169827$$uhttps://invenio.itam.cas.cz/record/10880/files/02-0148.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 02-0148.
000010880 962__ $$r9324
000010880 980__ $$aPAPER