Title :
An adaptive array for multipath effect reduction
Author :
Denidni, A.T. ; Delisle, G.Y.
Author_Institution :
Dept. of Electr. Eng., Laval Univ., Ste-Foy, Que., Canada
Abstract :
A novel adaptive algorithm which can be implemented to enhance reception of a desired signal in multipath environment is described. The new adaptive array uses a high-resolution direction finding algorithm followed by an optimal combination of antenna outputs. A numerical simulation which takes into account the different system parameters and operating conditions is used to predict the performance of the new adaptive array. The results obtained show that the adaptive array can follow a desired signal while suppressing multipath signals and that this system can also decrease the interference level some 25 dB under the desired signal level, which therefore makes it possible to improve the signal-to-noise ratio.<>
Keywords :
antenna phased arrays; array signal processing; fading; interference suppression; radio direction-finding; radiofrequency interference; SNR; adaptive algorithm; adaptive array; antenna outputs; desired signal level; high-resolution direction finding algorithm; interference level; mobile radio system; multipath effect reduction; multipath fading; multipath signals suppression; numerical simulation; signal reception; signal-to-noise ratio; system parameters; Adaptive arrays; Direction of arrival estimation; Fading; Interference; Multiple signal classification; Phased arrays; Sensor arrays; Signal processing; Smoothing methods; Spatial resolution;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1992. AP-S. 1992 Digest. Held in Conjuction with: URSI Radio Science Meeting and Nuclear EMP Meeting., IEEE
Conference_Location :
Chicago, IL, USA
Print_ISBN :
0-7803-0730-5
DOI :
10.1109/APS.1992.221778
