Title :
On the estimation of azimuth distributions and azimuth spectra
Author :
Bengtsson, Mats ; Völcker, Björn
Author_Institution :
Dept. of Signals, Sensors & Syst., R. Inst. of Technol., Stockholm, Sweden
fDate :
6/23/1905 12:00:00 AM
Abstract :
The increased popularity of array antennas for wireless communication, has inspired investigations of the spatio-temporal properties of the radio channel, among others the azimuthal shape of the scattering clusters. Based on a statistical analysis, we show that trying to estimate the shape of the scattering is an ill-posed problem and that the heavy-tailed power azimuth spectra reported in the literature may be an artifact stemming only from the measurement procedure
Keywords :
array signal processing; direction-of-arrival estimation; electromagnetic wave scattering; linear antenna arrays; multipath channels; parameter estimation; probability; radiowave propagation; spectral analysis; statistical analysis; stochastic processes; DOA distribution; PDF; array antennas; azimuth distributions estimation; azimuth spectra estimation; azimuthal shape; base station; direction of arrival; heavy-tailed power azimuth spectra; ill-posed problem; local scattering; mobile terminal; multipath rays; radio channel; scattering clusters; spatio-temporal properties; statistical analysis; stochastic model; uniform linear arrays; wireless communication; Antenna arrays; Antenna measurements; Azimuth; Fading; Power system modeling; Receiving antennas; Scattering; Shape measurement; Spatial resolution; Statistical analysis;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th
Conference_Location :
Atlantic City, NJ
Print_ISBN :
0-7803-7005-8
DOI :
10.1109/VTC.2001.956471
