Title :
Improved fast algorithm for spatial signature estimation
Author :
Kang, Joonhyuk ; Kim, Sang Youb ; Kavak, Adnan ; Xu, Guanghan
Author_Institution :
Dept. of Electr. & Comput. Eng., Texas Univ., Austin, TX, USA
Abstract :
We propose an improved fast algorithm for spatial signature estimation in array antenna systems. We provide an analysis for a fast estimation algorithm, which is not fully exploited in the previous work of Kim and Xu (see Proc. of IEEE Vehicular Technology Conference, 1997). Based on the analysis, we derive an improved algorithm which yields more accurate estimates with tolerable increment of computational complexity. The improvement is accomplished by compensation of noise power. Two different estimation methods for the noise power are presented. We investigate the performance of the proposed method via computer simulation
Keywords :
adaptive antenna arrays; array signal processing; computational complexity; direction-of-arrival estimation; noise; CDMA system; DOA estimation; SVD; array antenna systems; cell coverage; cochannel interference; computational complexity; computer simulation; direction of arrival estimation; estimation methods; improved fast algorithm; intersymbol interference; noise power compensation; performance; singular value decomposition; smart antenna systems; spatial signature estimation; system capacity; Algorithm design and analysis; Antenna arrays; Computational complexity; Covariance matrix; Direction of arrival estimation; Directive antennas; Mobile antennas; Singular value decomposition; Transmitting antennas; Yield estimation;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2000. ICASSP '00. Proceedings. 2000 IEEE International Conference on
Conference_Location :
Istanbul
Print_ISBN :
0-7803-6293-4
DOI :
10.1109/ICASSP.2000.861189
