Institute for Telecommunication Sciences
the research laboratory of the National Telecommunications and Information Administration

Peter B. Papazian; John J. Lemmon

Abstract: This paper describes radio channel sounding measurements and analysis using pseudo-noise (PN) codes. It presents a channel sounding model and shows how channel measurements can be made. A measurement system is described that can be implemented using a combination of radio frequency (RF) hardware, high speed analog to digital converters (ADC), and signal processing software. Sampling requirements and models for describing the stochastic nature of the radio channel are discussed. Typical signal outputs of a PN channel sounder from the laboratory and from field measurements are shown. The field measurements are used to show how channel sounding data can be processed to develop a power law model of short-range communications. This model can be used for a statistical estimation of received power and interference analysis.

Keywords: impulse response; multipath; RF; propagation; channel model; channel sounding


To request a reprint of this report, contact:

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

For technical information concerning this report, contact:

Peter B. Papazian
Institute for Telecommunication Sciences
(303) 497-5369
ppapazian@ntia.doc.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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