A TIME-DOMAIN INCIDENT FIELD EXTRAPOLATION TECHNIQUE BASED ON THE SINGULARITY EXPANSION METHOD

Authors
  1. Klaasen, J.J.A.
Corporate Authors
Defence Research Establishment Ottawa, Ottawa ONT (CAN);Physics and Electronics Lab TNO, The Hague (Netherlands)
Abstract
A method is presented to extrapolate measurements from Nuclear Electromagnetic Pulse (NEMP) assessments directly in the time domain. This method is based on a time-domain extrapolation function which is obtained from the Singularity Expansion Method representation of the measured incident field of the NEMP simulator. Once the time-domain extrapolation function is determined, the responses recorded during an assessment can be extrapolated simply by convolving them with the time-domain extrapolation function. It is found that to obtain useful extrapolated signals, the incident field measurement needs to be made minimum phase; otherwise unbounded results can be obtained. Results obtained with this technique are presented, using data from actual assessments.
Report Number
DREO-1076 —
Date of publication
15 May 1991
Number of Pages
34
DSTKIM No
91-04368
CANDIS No
71554
Format(s):
Hardcopy;Originator's fiche received by DSIS

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