Error Correction in Transient Electromagnetic Field Measurements Using Deconvolution Techniques

  • Jian-Zhong Bao
  • Jonathan C. Lee
  • Michael E. Belt
  • David D. Cox
  • Satnam P. Mathur
  • Shin-Tsu Lu

Abstract

It is difficult to make an accurate transient measurement on electromagnetic pulses in the pico-second domain because of the limitations of measurement components. In this paper, we present a two-step deconvolution routine to compensate for the measurement distortions in our short electromagnetic pulse (EMP) exposure facility for studying biological effects. As depicted in Figure 1, the facility mainly consists of a pulse generator and a GTEM cell. The measurement system includes a Tektronix SCD 5000 transient digitizer (4.5 GHz bandwidth), connection cables, and two Asymptotic Conical Dipole (ACD) D-dot (dD/dt) sensors: ACD-1(A), which is mounted on the top ground wall of the cell and utilized for real time monitoring during exposures, and ACD-1(R), which is used to map the field on the bottom ground wall of the cell where the specimens are placed.

Keywords

Coaxial Line Connection Cable System Transfer Function Frequency Domain Data Energy Density Spectrum 
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References

  1. [1]
    W. H. Press, B. P. Flannery, S. A. Teukolsky, and W. T. Vetterling. Numerical Recipes in C. Cambridge University Press, Cambridge, UK, 2 edition, 1992.Google Scholar
  2. [2]
    A. V. Oppenheim and R. W. Schafer. Discrete-Time Signal Processing. Prentice Hall, New Jersey, 1989.MATHGoogle Scholar
  3. [3]
    T. Sarkar, H. Wang, R. Adve, and M. Moturi. Evaluation of a causal time domain response from bandlimited frequency domain data. In H. L. Bertoni, L. Carin, and L. B. Felsen, editors, Ultra-Wideband, Short-Pulse Electromagnetics, pages 501–515, Plenum Press, New York, 1993.Google Scholar
  4. [4]
    N. S. Nahman. Software correction of measured pulse data. In J. E. Thompson and L. H. Luessen, editors, Fast Electrical and Optical Measurements. Volume I, pages 351–417, Martinus Nijhoff Publishers, Boston, 1986.Google Scholar
  5. [5]
    Specification of ACD D-dot Sensor (Data Sheet 1119 ). EGandG Washington Analytical Services Center, Inc., Albuquerque, New Mexico, 1987.Google Scholar
  6. [6]
    J.-Z. Bao. Time domain optimization with frequency domain derivatives. To be published.Google Scholar

Copyright information

© Springer Science+Business Media New York 1997

Authors and Affiliations

  • Jian-Zhong Bao
    • 1
  • Jonathan C. Lee
    • 1
  • Michael E. Belt
    • 1
  • David D. Cox
    • 1
  • Satnam P. Mathur
    • 1
  • Shin-Tsu Lu
    • 1
  1. 1.McKesson BioServices and U.S. Army Medical Research DetachmentBrooks Air Force BaseUSA

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