DocumentCode :
1112561
Title :
Partially adaptive beamformer design subject to worst-case performance constraints
Author :
Qian, Feng ; Van Veen, Barry D.
Author_Institution :
Dept. of Electr. & Comput. Eng., Wisconsin Univ., Madison, WI, USA
Volume :
42
Issue :
5
fYear :
1994
fDate :
5/1/1994 12:00:00 AM
Firstpage :
1218
Lastpage :
1221
Abstract :
Proposes two methods for designing partially adaptive beamformers that satisfy a performance specification over a set of likely interference scenarios. Both methods choose the adaptation space in a sequential fashion; the dimension is increased one by one until the performance specification is attained. In the multilevel point design method, each dimension of the adaptation space is chosen to give optimum performance at a single interference scenario. The constrained minimization design method chooses each dimension of the adaptation space to exactly satisfy the performance specification at a single interference scenario while approximately minimizing the average interference output power over neighboring scenarios. Simulations indicate that both methods result in better performance than existing methods while using fewer degrees of freedom
Keywords :
array signal processing; interference suppression; minimisation; adaptation space; average interference output power; constrained minimization design method; multilevel point design method; partially adaptive beamformer; performance specification; simulations; Computational complexity; Computational modeling; Degradation; Design methodology; Interference cancellation; Interference constraints; Minimization methods; Performance loss; Power generation; Steady-state;
fLanguage :
English
Journal_Title :
Signal Processing, IEEE Transactions on
Publisher :
ieee
ISSN :
1053-587X
Type :
jour
DOI :
10.1109/78.295197
Filename :
295197
Link To Document :
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