TIME SERIES TECHNIQUES APPLIED TO UNDERGROUND NUCLEAR DETECTION AND FURTHER DIGITIZED SEISMIC DATA

摘要

40 more records from the Logan and Blanca series have been digitized at 1/20 sec. increments;, approximately 3000 5 points each, .making a total of 9 records (including earth- quakes at 1/lO.sec.) which are presently available to others on IBM BCD magnetic tapes.nSpectral analysis underlies most of our applied concepts:. A mathematical treatment of the spectral estimation problem for stationary time series is presented, including an analysis of bias, variance, and end effects for an optimum (Daniell) -estimation technique. Overall spectral windows of the technique are presented for a wide range of parameters.