Generalized principal component beamformer for communication systems

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• 作者：Biguesh ; Mehrzad ; Valaee ; Shahrokh ; Champagne ; Benoî ; t
• 关键词：Beamformer ; Antenna array ; Sidelobe canceller
• 刊名：Signal Processing
• 出版年：2005
• 出版时间：January, 2005
• 年：2005
• 卷：85
• 期：1
• 页码：67-79
• 全文大小：360 K

文摘

The contribution of this paper is two-fold. First, we introduce a generalized principal component (GPC) beamforming technique for reduced rank processing that allows a trade-off between interference and noise reduction via the introduction of a control parameter, Formula Not Shown . Three variants of the GPC beamformer corresponding to Formula Not Shown (called T1 beamformer), Formula Not Shown (called T2 beamformer) and Formula Not Shown (called T3 beamformer), which maximize the signal-to-interference ratio, the signal-to-interference plus noise ratio, and the signal-to-noise ratio at the array output respectively, are considered in detail. The second contribution of this paper is to compare the robustness between the reduced rank and full rank beamformers. We use analytical studies and computer simulations to show that the T2 and T3 beamformers are robust against calibration and/or pointing errors.