Title :
An interference canceler robust to beam pointing error
Author :
Zhao, Yongbo ; Zhang, Shouhong
Author_Institution :
Nat. Key Lab. of Radar Signal Process., Xidian Univ., Xi´´an, China
Abstract :
This paper considers adaptive interference cancellation in the presence of beam pointing error. Based on the analysis of the effect of beam pointing error on the performance of the eigenanalysis interference canceler(EIC), a modified interference canceler with robust capabilities is proposed. The proposed interference canceler can get the projected vector of the steering vector of the desired signal on the noise subspace as the weight vector. Theoretical analysis indicates that this interference canceler is more robust to beam pointing error than the EIC. The performance of this interference canceler is examined via simulations.
Keywords :
array signal processing; eigenvalues and eigenfunctions; interference suppression; adaptive arrays; adaptive interference cancellation; beam pointing error robustness; eigenanalysis interference canceler; interference suppression; modified interference canceler; noise subspace; projected vector; simulations; steering vector; uniform linear array; weight vector; Adaptive arrays; Covariance matrix; Interference cancellation; Interference constraints; Noise cancellation; Noise robustness; Performance analysis; Sensor arrays; Subspace constraints; Vectors;
Conference_Titel :
Sensor Array and Multichannel Signal Processing Workshop Proceedings, 2002
Print_ISBN :
0-7803-7551-3
DOI :
10.1109/SAM.2002.1190997
