Beamforming technique based on adaptive diagonal loading in wireless access networks
Sign Up to like & getrecommendations! Published in 2020 at "Ad Hoc Networks"
DOI: 10.1016/j.adhoc.2020.102249
Abstract: Abstract The technique of beamforming which determines the directionality of array sensors plays an important part in wireless access networks, due to small snapshots and variational signal-to-noise ratio(SNR) in practical applications, the performance of traditional… read more here.
Keywords: access networks; technique; adaptive diagonal; loading ... See more keywords
Robust Adaptive Beamforming Using Noise Reduction Preprocessing-Based Fully Automatic Diagonal Loading and Steering Vector Estimation
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Access"
DOI: 10.1109/access.2017.2725450
Abstract: Diagonal loading provides a powerful and effective way to improve the robustness of the standard Capon beamformer. Several parameter-free robust adaptive beamformers (RAB) are considered in this paper. We reveal that the performances of them… read more here.
Keywords: vector; robust adaptive; noise reduction; diagonal loading ... See more keywords
Analysis of Optimal Diagonal Loading for MPDR-Based Spatial Power Estimators in the Snapshot Deficient Regime
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Journal of Oceanic Engineering"
DOI: 10.1109/joe.2018.2815480
Abstract: The minimum power distortionless response (MPDR) beamformer minimizes the output power while passing the look direction signal with unity gain. To alleviate the performance degradation caused by estimating the spatial correlation matrix with a relatively… read more here.
Keywords: power estimators; diagonal loading; power; snapshot deficient ... See more keywords
A User Parameter-Free Diagonal-Loading Scheme for Clutter Rejection on Radar Wind Profilers
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Atmospheric and Oceanic Technology"
DOI: 10.1175/jtech-d-16-0058.1
Abstract: AbstractThis paper presents a novel method for the automatic determination of the diagonal-loading level for robust adaptive beamforming on radar wind profilers. This method balances the degradation of the signal-to-interference ratio with that of the… read more here.
Keywords: wind; clutter; wind profilers; diagonal loading ... See more keywords
VARIABLE DIAGONAL LOADING BASED ROBUST CONCENTRIC HEXAGONAL ANTENNA ARRAY WITH LOW SIDE LOBE LEVEL USING TAPERING WINDOWS
Sign Up to like & getrecommendations! Published in 2020 at "Progress in Electromagnetics Research C"
DOI: 10.2528/pierc20060604
Abstract: In this paper, the performance of a concentric hexagonal antenna array (CHAA) is investigated with the exploitation of a robust variable diagonal loading (VDL) technique in the presence of direction of arrival (DOA) mismatch. The… read more here.
Keywords: diagonal loading; lobe level; chaa; side lobe ... See more keywords