Title :
Two-dimensional transform-domain partially adaptive beamformer
Author :
Moon, Sung-Hoon ; Han, Dong-Seog ; Cho, Myoung-Je
Author_Institution :
Sch. of Electron. & Electr. Eng., Kyungpook Nat. Univ., Taegu, South Korea
Abstract :
This paper proposes a transform-domain partially adaptive beamformer to reduce the computational complexity of conventional transform-domain beamformers, After transforming the input signals, the proposed beamformer adapts only those parts of the weights that correspond to the transformed coefficients expected to contain interference by using the cell averaging constant false alarm rate (CA-CFAR) processor. The false alarm rate of the CA-CFAR processor is also changed adaptively according to the variation of output power
Keywords :
antenna arrays; antenna theory; array signal processing; computational complexity; interference (signal); transforms; CA-CFAR processor; cell averaging constant false alarm rate processor; computational complexity; false alarm rate; interferences; output power; two-dimensional transform-domain partially adaptive beamformer; Array signal processing; Computational complexity; Convergence; Discrete Fourier transforms; Eigenvalues and eigenfunctions; Fourier transforms; Interference; Least squares approximation; Moon; Power generation;
Conference_Titel :
Military Communications Conference, 2001. MILCOM 2001. Communications for Network-Centric Operations: Creating the Information Force. IEEE
Conference_Location :
McLean, VA
Print_ISBN :
0-7803-7225-5
DOI :
10.1109/MILCOM.2001.986050
