Robert F. Linfield; Robert W. Hubbard; Lauren E. Pratt

Abstract: Some basic concepts. design criteria and hardware implementations are reviewed for measuring the impulse responses which characterize radio transmission channels. A channel sounder which is presently being used by the Institute for Telecommunication sciences (ITS) is described. The sounder was implemented for easy transport and operational convenience in collecting response data on a variety of transmission paths and over a wide frequency range. Some applications and measurement results are presented to illustrate the capabilities.

Keywords: channel characterization; impulse response; multipath; modeling; pseudo-random signals; microwave transmission; time-variant filters; correlation processing

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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