Title :
A beamforming algorithm for adaptive antennas operating in crowded CDMA signal environment
Author :
Migliore, Marco Donald
Author_Institution :
DAEIMI, Univ. di Cassino, Italy
fDate :
4/1/2006 12:00:00 AM
Abstract :
A novel beamforming algorithm for adaptive antennas operating in a crowded signal code division multiple access environment is presented. The novelty of the algorithm consists in the use of both classical and modern spectral estimation algorithms. In particular, the estimation of the direction of arrival of the desired signal is performed using the signal covariance matrix, while the distribution of the interference signals is obtained by means of the spectrogram. This approach permits satisfactory performances even when the number of signals is much larger than the number of elements of the array.
Keywords :
adaptive antenna arrays; array signal processing; code division multiple access; covariance matrices; direction-of-arrival estimation; interference (signal); DOA; adaptive antenna array; beamforming algorithm; code division multiple access system; covariance matrix; crowded CDMA signal; direction-of-arrival estimation; interference signal; spectral estimation algorithm; spectrogram; Adaptive arrays; Array signal processing; Covariance matrix; Direction of arrival estimation; Filters; Interference; Multiaccess communication; Phased arrays; Signal processing; Wireless communication; Adaptive antennas; code division multiple access (CDMA) systems; wireless communication;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2006.872645