Accession Number:

ADA273149

Title:

Mitigation of EMI/RFI Produced by a 1.2 kW Uninterruptible Power Supply

Descriptive Note:

Master's thesis

Corporate Author:

NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s):

Report Date:

1993-09-01

Pagination or Media Count:

129.0

Abstract:

Recently installed equipment in naval receiving sites, such as Uninterruptible Power Supplies UPS, digital telephone switching systems, and personal computers, inject noise into receiver systems via power conductors, cable shields, and grounds, thus reducing the probability of intercept of a signal of interest, in the 2-100 NMHz range. In this thesis a survey of EMIRFI sources at receiving sites is performed. The effectiveness of a Barrier-Filter- Ground architecture in containingeliminating EMIRFI from a 1.2 kW UPS is tested. The spectral and temporal properties of the EMIRFI from the UPS are recorded. estimates for the EMIRFI power are obtained from 60Hz to l00kHz, and a possible solution is proposed for obtaining noise power estimates for higher frequencies. Electromagnetic interference EMIRadio-Frequency Interference RFI, Barrier-filter-ground architecture.

Subject Categories:

  • Electric Power Production and Distribution
  • Electricity and Magnetism
  • Radiofrequency Wave Propagation
  • Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE