This paper also show a rough estimate of the gains of this array , because it needs one year ' s data to collect one year ' s noise correlation variation curves and then give a more practical detection ability of the seismic array . one result of this paper is " seismic array site survery data processing software " exploited by the author . the software can calculate the power spectrum of noise for every site , noise coherence function for every site pair , the cross - correlation curves , the root mean square of noise for every site and the array response 此外還計(jì)算了該臺(tái)陣的臺(tái)陣響應(yīng),發(fā)現(xiàn)臺(tái)陣響應(yīng)的主瓣高而尖;旁瓣很小,這歪姐鈕遠(yuǎn)宣腔撾踏數(shù)公鍍壁韶逼上攏唆精確啻應(yīng):有關(guān)此臺(tái)陣的檢測(cè)能力,只能給出一個(gè)粗略的估計(jì),因?yàn)樵u(píng)價(jià)一個(gè)臺(tái)陣對(duì)地震事件的檢測(cè)能力需要獲得為期一年的觀測(cè)資料,才能給出一年內(nèi)噪聲場(chǎng)變化的相關(guān)值曲線,最終給出更加符合實(shí)際的臺(tái)陣檢測(cè)能力。
The cross - correlation curves method as a traditional method is to find out the distance with the biggest snr to be the radius . the author tried a new coherence function method combined with the cross - correlation curves traditional method to confirm that the radius of the seismic array are 380m and 1500 - 1750m respectively 作者對(duì)比了各測(cè)點(diǎn)對(duì)之間的噪聲和信號(hào)的相干函數(shù)并找出了信噪比最大的距離值,結(jié)合傳統(tǒng)的相關(guān)值曲線理論得出了蘭州臺(tái)陣內(nèi)外圓的半徑分別為380m和1500 - 1750m 。