Radio Science, Volume 32, Number 2, Pages 525-539

Wideband Model of Man-Made HF Noise and Interference

March-April 1997

John J. Lemmon

This paper is not subject to U.S. copyright. Published in 2001 by the American Geophysical Union.

Abstract: A mathematical model of the waveform generated by man-made high frequency (HF) noise and interference is presented and discussed. The model is based on wideband (800 kHz) recordings of the noise and interference at various frequencies in the HF band. Representative examples of first- and higher-order statistics of the measured waveforms are described, including probability distributions of the envelope and phase of the noise and interference in the time and frequency domains, power spectra, autocorrelation functions, and level crossing distributions. The statistics of waveforms generated by the model closely resemble the statistics of the measured data.

• Article

Disclaimer: Certain commercial equipment, components, and software are 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.

For technical information concerning this report, contact:
John Lemmon, Physicist
Institute for Telecommunication Sciences
Voice: (303) 497-3414
jlemmon@its.bldrdoc.gov