Title :
A comparison of time- and frequency-domain wireless channel sounding techniques
Author :
Flikkema, Paul G. ; Johnson, Sandra G.
Author_Institution :
Dept. of Electr. Eng., Univ. of South Florida, Tampa, FL, USA
Abstract :
Modeling the wireless channel involves using a known probing signal to estimate channel parameters such as multipath attenuation and arrival times. A general form for the probing signal is introduced for channel sounding. Four specific techniques are described and their accuracy in measuring the channel impulse response is compared. The time domain techniques are the sliding correlator method and the direct pulse technique. The frequency domain techniques described are the single tone method and the frequency modulated continuous wave (FMCW) radar technique
Keywords :
CW radar; FM radar; attenuation measurement; correlation methods; electromagnetic wave absorption; frequency-domain analysis; multipath channels; radar applications; radiowave propagation; time-domain analysis; transient analysis; transient response; FMCW radar; arrival times; channel impulse response; channel parameter estimation; direct pulse technique; frequency domain techniques; frequency modulated continuous wave; frequency-domain wireless channel sounding; measurement accuracy; multipath attenuation; probing signal; radio propagation; single tone method; sliding correlator method; time domain techniques; time-domain wireless channel sounding; Correlators; Delay effects; Frequency; Interference; Matched filters; Parameter estimation; Power measurement; Pulse shaping methods; Time measurement; Transmitters;
Conference_Titel :
Southeastcon '96. Bringing Together Education, Science and Technology., Proceedings of the IEEE
Conference_Location :
Tampa, FL
Print_ISBN :
0-7803-3088-9
DOI :
10.1109/SECON.1996.510118
