Abstract
The high resolution of the Large Aperture Seismic Array (LASA) and the volume of data it produces makes many of the recording and processing techniques used for the earlier Vela arrays impractical, obsolete, or both. In this paper, the history of processing for seismic arrays is briefly reviewed, and the recording and processing requirements of the LASA in contrast to past arrays are summarized. Both the on-line use of the LASA for detection of seismic disturbances and the off-line processing of the data for signal analysis are centered around the use of high-speed digital processing equipment. The on-line processing facilities at the LASA Data Center are described, and the current effort to evaluate processing techniques for use with LASA is discussed.
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