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However, the computational complexity required by an LCMV beamformer is increased significantly as the number of its sensors increases. To alleviate this difficult, we present a method to reduce the number of adaptive weights required by a generalized sidelobe canceler (GSC) based adaptive array ...
We propose a new robust beamformer for estimating movement parameters in impulsive noise environments using a phased array radar with antenna switching. Th... Lee, MS,Katkovnik, V,Kim, YH - 《Signal Processing》 被引量: 6发表: 2004年 Design of robust broadband beamformers using worst-case ...
Implementations indlude delay-and-sum, Frost, generalized sidelobe cancellation, MVDR, and LCMV该工具箱提供窄带和宽带波束形成器、多用户波束形成器、混合波束形成器、传统波束形成器和自适应波束形成器。实现包括延迟和、弗罗斯特、广义旁瓣抵消、MVDR和LCMV Narrowband Beamformers phased.LCMVBeamformerNarrowband ...
Sony Lee, in Mechanical Systems and Signal Processing, 2010 Considering a receiver array is composed by M receiver, the time domain for the delay-and-sum beamforming output can be expressed as follows: (4)OutputBF(t)=∑m=1Mδ(t+τm)⊗Pm(t)=∑m=1Mδ(t+τm)⊗hm(t)⊗s(t) ...
1. Let the bit duration Tb be equal to the processing gain L times the chip duration Tc. Let am(θ) = exp [−j2πd(m − 1) sin θ/β] denotes the response of the mth sensor array to a signal with unit The proposed robust MVDR beamformer The MVDR beamformer is a spatial ...
Abstract This chapter formulates the representative models and depicts the corresponding solutions for acoustic localization in the outdoor scenarios, where the sound signals are natural but not designed deliberately, such as gunfire and artillery firing. The focus is on the acoustic-energy localization...
Chen et al., Design of Robust Broadband Beamformers with Passband Shaping Characteristics using Tikhonov Regularization, IEEE Transactions on Audio, Speech, and Language Processing, vol. 17, No. 4, May 2009, pp. 565-681. Chen, et al., A General Approach to the Design and Implementation of...
The design of optimum beamformers is formulated and coupled to the representation of the signal field and the receiving array. The structure of optimum beamforms are analyzed and related to beam displacement, null placement, and superdirective methods. Processing performance obtained by exact methods ...
1. A method of processing a multichannel signal, said method comprising: for each of a plurality of different frequency components of the multichannel signal, calculating a difference between a phase of the frequency component at a first time in each of a first pair of channels of the multichan...