SOURCE LEVELS OF SHALLOW SOUND SOURCES

PDF

Authors
  1. Yee, W.
Corporate Authors
Defence Research Establishment Pacific, Victoria BC (CAN);JASCO Research Ltd, Sidney BC (CAN)
Abstract
A deconvolution technique has been developed for and applied to acoustic waveforms from explosive charges contaminated by surface reflected energy. Previously, this data contamination was removed by performing a linear interpolation through the reflected signal because standard methods of deconvolution could not be applied with any degree of success. The method developed utilizes the subtraction of an inverted copy of the direct path pulse from its corresponding surface reflected pulse. The process was applied in sections along the waveform until an uncontaminated waveform of three bubble pulses was obtained. The data used for the development of the method were 0.82kg SUS charge waveforms with explosion depths of approximately 50m. After the technique proved successful, SUS charge waveforms with explosion depths of approximately 18m were similarly processed. TRUNCATED
Report Number
DREP-CR-91-02 — Contractors Report
Date of publication
15 Aug 1990
Number of Pages
38
DSTKIM No
91-03700
CANDIS No
70890
Format(s):
Document Image stored on Optical Disk;Originator's fiche received by DSIS

Permanent link

Document 1 of 1

Date modified: