Title :
An uncertainty relation for WSS processes and its application to WSSUS systems
Author :
Fleury, Bernard Henri
Author_Institution :
Commun. Technol. Lab., Eidgenossische Tech. Hochschule, Zurich, Switzerland
fDate :
12/1/1996 12:00:00 AM
Abstract :
An uncertainty relation of the same kind as the one by Heisenberg is established between the coherence interval and the spectral spread of zero-mean wide-sense-stationary mean-square-continuous processes whose spectrum has a finite second moment. Pairs of estimates of the coherence bandwidth and of the corresponding delay spread which have been obtained from measurements in an indoor radio environment are confined as stated by this uncertainty relation
Keywords :
indoor radio; information theory; uncertain systems; WSS processes; WSSUS systems; coherence bandwidth estimates; coherence interval; delay spread; finite second moment; indoor radio environment; spectral spread; uncertainty relation; wide-sense-stationary uncorrelated-scattering systems; zero-mean wide-sense-stationary mean-square-continuous processes; Bandwidth; Delay effects; Delay estimation; Density measurement; Frequency; Indoor radio communication; Particle measurements; State estimation; Thumb; Uncertainty;
Journal_Title :
Communications, IEEE Transactions on
