Application of digital signal processing methods to geodesy

Power spectral density measurements of seismic data over a frequency range from dc to 100Hz have been made at six locations in New Mexico. The purpose of these measurements was to establish a data base as a starting point for initial discussions concerning the site selection criteria for the proposed Air Force Precision Guidance Test Facility (PGTF). A description of the test station used for the measurements is presented along with representative samples of the measured data from the various site locations. Based on relative comparison of power spectral density measurements conclusions are made as to the "best" location, of the sites tested for the PGTF.