Title :
Adaptive nulling array antenna using a new variable step size LMS-type algorithm
Author :
Li Minchao ; Xi Xiaoli ; Song Zhongguo ; Liu Jiangfan ; Huang Yeteng
Author_Institution :
Xi´an Univ. of Technol., Xi´an, China
fDate :
March 30 2015-April 1 2015
Abstract :
A adaptive array antenna system consisting of antenna array and adaptive processor can easily control directivity patterns, by enhance the desired signal and suppress interference signal. The classical LMS has a contradiction that fast convergence rate and low steady state error. In order to overcome this contradiction, this paper presents a new algorithm which uses gradient vector features to achieve iterative step. The software simulation results verify the effectiveness of the algorithm.
Keywords :
adaptive antenna arrays; antenna radiation patterns; interference suppression; least mean squares methods; adaptive nulling array antenna system; iterative step; variable step size LMS-type algorithm; Adaptive arrays; Arrays; Convergence; Interference; Least squares approximations; Signal processing algorithms; Steady-state; Adaptive; LMS algorithm; antenna array; power inversion; variable step-size;
Conference_Titel :
Wireless Symposium (IWS), 2015 IEEE International
Conference_Location :
Shenzhen
DOI :
10.1109/IEEE-IWS.2015.7164623
