Transmission Channel Characterization by Impulse Response Measurements,

摘要

Some basic concepts,design criteria and hardware implementation 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.