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Weighted l1-norm sparse constraint robust beam-forming method and device in presence of pulse noise

A sparse constraint, impulse noise technology, applied in the field of communication, can solve the problems of weak interference suppression capability and low output signal-to-interference-noise ratio, etc., and achieve the effect of improving interference suppression capability and output signal-to-interference-noise ratio.

Active Publication Date: 2017-11-10
SHENZHEN UNIV
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Problems solved by technology

[0006] The technical problem to be solved by the embodiments of the present invention is to provide a weighted sparse constrained robust beamforming method and device under impulsive noise, aiming to solve the problem of weak interference suppression capability and low output signal-to-interference-noise ratio in the prior art

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  • Weighted l1-norm sparse constraint robust beam-forming method and device in presence of pulse noise
  • Weighted l1-norm sparse constraint robust beam-forming method and device in presence of pulse noise
  • Weighted l1-norm sparse constraint robust beam-forming method and device in presence of pulse noise

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Embodiment Construction

[0025] In order to make the purpose, features, and advantages of the embodiments of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, The described embodiments are only some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0026] Please refer to the attached figure 1 , with figure 1 It is a schematic diagram of the implementation flow of the weighted sparse constrained robust beamforming method under impulse noise provided by the first embodiment of the present invention. as attached figure 1 As shown, the method mainly includes the following steps:

[00...

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Abstract

The invention is suitable for the technical field of communication, and provides a weighted l1-norm spare constraint robust beam-forming method and device in presence of pulse noise. The method comprises the steps of building an optimization formula based on statistic average of absolute values output by an array and sparsity of a beam direction pattern; building a weighting matrix through infinity-norm normalization and a eigen-subspace method; solving an optimal weight vector based on an iterative complex weighted least square method and calculating a signal-to-interference-plus-noise based on the optimal weight vector. Compared with the prior art, the method adaptively applies relatively big constraint to interference signals, obviously improves the interference suppression capability and increases the output signal-to-interference-plus-noise.

Description

technical field [0001] The invention belongs to the technical field of communication, in particular to a weighted sparse constrained robust beamforming (Weighted l 1 -norm Sparse Constraint Robust Beamforming, Wl 1 - RBF) method and device. Background technique [0002] Whether in the field of radar or communication technology, array signal processing technology has always been an important technology for multi-antenna systems, and beamforming (BF) technology is the most important technology in array signal processing technology. The basic idea of ​​beamforming technology is to enhance the target signal from the desired direction and suppress the interference signal and noise from other directions to maximize the output signal-to-interference-plus-noise (SINR). [0003] Beamformers are mainly divided into two categories, one is traditional beamformers that are independent of data, and the other is modern beamformers that are data dependent. Traditional beamformers are ind...

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Application Information

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IPC IPC(8): H04J11/00H04B7/0408H04B7/0456
CPCH04B7/0408H04B7/0456H04J11/0023H04J11/003
Inventor 阳召成汪小叶黄建军
Owner SHENZHEN UNIV
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