Title :
Virtual angle diversity
Author :
Fattouche, Michel ; Zaghloul, Hatim
Author_Institution :
Dept. of Electr. & Comput. Eng., Calgary Univ., Alta., Canada
Abstract :
The paper takes advantage of the motion of a vehicle in an urban mobile radio environment to create a virtual antenna array out of a single antenna. Based on root-MUSIC, the virtual array is used to resolve up to two Doppler frequencies. In an IS-54 environment, the resolved frequencies correspond to the two clusters of incoming radio waves (specified by TR45.3.2) assuming that each cluster has a unique Doppler frequency. Once the Doppler frequencies are resolved, notch filtering is used to separate the two clusters hence forcing the channel to be frequency-flat. Once the two clusters have been separated, they can be combined as a second order angle diversity system
Keywords :
Doppler effect; adjacent channel interference; cellular radio; cochannel interference; diversity reception; fading; interference suppression; intersymbol interference; land mobile radio; mobile antennas; notch filters; radiofrequency interference; Doppler frequencies; IS-54 environment,; clusters of incoming radio waves; notch filtering; root-MUSIC; second order angle diversity system; single antenna; urban mobile radio environment; virtual angle diversity; virtual antenna array; Antenna arrays; Filtering; Frequency; Maximum likelihood estimation; Mobile antennas; Multiple signal classification; Narrowband; Receivers; Receiving antennas; Signal resolution;
Conference_Titel :
Universal Personal Communications, 1993. Personal Communications: Gateway to the 21st Century. Conference Record., 2nd International Conference on
Conference_Location :
Ottawa, Ont.
Print_ISBN :
0-7803-1396-8
DOI :
10.1109/ICUPC.1993.528347
