February 1971 | NTIA Technical Memo OT ITS TM 28

Electromagnetic interference environment measurement and prediction considerations

Robert T. Disney

Abstract: The determination of an optimum receiving system for a given class of signals or how satisfactorily a given receiving system will operate requires information on the interference environment in which the system must operate. The important interference parameter s required for estimating expected system performance are power density, amplitude probability distribution functions, time statistics at various amplitudes, and auto-covariances as functions of time, location, frequency, polarization, and direction of arrival, Considerations for the establishment of programs to obtain this information and a discussion of the measurement of the environment are given.

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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