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NTIA Technical Report TR-05-419
Interference potential of ultrawideband signals: Part 1: Procedures to characterize ultrawideband emissions and measure interference susceptibility of C-band satellite digital television receivers

February 2005

Michael Cotton; Robert Achatz; Jeffery Wepman; Brent Bedford

Abstract: In this study, we hypothesize that ultrawideband (UWB) interference potential can be quantified in terms of UWB signal characteristics. To test this hypothesis, a test system was designed and built to inject UWB signals with known characteristics into a C-band satellite digital television receiver and quantitatively measure interference susceptibility via signal quality metrics (e.g., segment error rate, pre-Viterbi bit error rate, and modulation error ratio) taken from various points in the receiver signal processing chain. UWB signals are characterized by the amplitude probability distribution and power spectral density. Characterization measurements done with a vector signal analyzer provide amplitude and phase information to enable extensive post-measurement capability. This report describes the test setup and procedures in detail. Subsequent reports will provide assessment of interference potential for gated Gaussian noise bursts (Part 2) and modern UWB systems (Part 3).

The related reports are NTIA Technical Report TR-05-429 Interference Potential of Ultrawideband Signals Part 2: Measurement of Gated-Noise Interference to C-Band Satellite Digital Television Receivers and NTIA Technical Report TR-06-437 Interference Potential of Ultrawideband Signals Part 3: Measurement of Ultrawideband Interference to C-Band Satellite Digital Television Receivers.

Keywords: satellite communications; Interference; ultrawideband; digital television


To request a reprint of this report, contact:

Lilli Segre, Publications Officer
Institute for Telecommunication Sciences
(303) 497-3572
lsegre@its.bldrdoc.gov

For technical information concerning this report, contact:

Michael G. Cotton
Institute for Telecommunication Sciences
(303) 497-7346
mcotton@its.bldrdoc.gov


Disclaimer: Certain commercial equipment, components, and software may be identified in this report to specify adequately the technical aspects of the reported results. In no case does such identification imply recommendation or endorsement by the National Telecommunications and Information Administration, nor does it imply that the equipment or software identified is necessarily the best available for the particular application or uses.

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