Proceedings of the 2012 IEEE International Symposium on Electromagnetic Compatibility (EMC2012), pp. 565-570, Aug. 5-10, 2012

Specialized Algorithms for Spectrum Surveys

Heather E. Ottke; Chriss A. Hammerschmidt

Abstract: With increased demand in the radio spectrum, there have been multiple recent campaigns to quantify spectrum occupancy through measurements. These measurements can pose many challenges, one of which is created by impulsive noise. Below 500 MHz, impulse noise can be particularly prominent and mimic narrowband LMR emissions during measurements that use common swept spectrum measurement techniques. This paper discusses methods to properly measure the intentionally radiated signals in the environment while minimizing measurement of unintentional emissions and describes processing algorithms that may be used to assist in distinguishing between LMR emissions and impulsive noise.

Keywords: radio spectrum; impulsive noise; spectrum measurements; spectrum occupancy; narrowband LMR emissions; swept spectrum; intentionally radiated signals

For technical information concerning this report, contact:

Heather E. Ottke
Institute for Telecommunication Sciences
(303) 497-6753

To request a reprint of this report, contact:

Lilli Segre, Publications Officer
Institute for Telecommunication Sciences
(303) 497-3572

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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