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Angle of Arrival Estimation Through a Full-Hardware Approach for Adaptive Beamforming
IEEE Transactions on Circuits and Systems - II - Express Briefs, 2020This brief introduces a full-hardware approach for Angle of Arrival (AoA) estimation in phased array antennas. The system has a modular structure composed of an analog section to up/down-convert RF signals and a digital section for the AoA estimation ...
G. Avitabile, A. Florio, G. Coviello
semanticscholar +1 more source
IEEE Antennas and Wireless Propagation Letters, 2020
The wideband adaptive beamforming method would deteriorate severely when the desired signal is contained in the training snapshots, especially the mismatched signal steering vector existed simultaneously. Therefore, a robust wideband adaptive beamforming
Xiaopeng Yang +4 more
semanticscholar +1 more source
The wideband adaptive beamforming method would deteriorate severely when the desired signal is contained in the training snapshots, especially the mismatched signal steering vector existed simultaneously. Therefore, a robust wideband adaptive beamforming
Xiaopeng Yang +4 more
semanticscholar +1 more source
Adaptive beamforming for nonstationary arrays
The Journal of the Acoustical Society of America, 2002Adaptive beamformers automatically adjust to the input data on the sensors in an attempt to maximize the bearing resolution of a signal and minimize the effects of noise or interfering signals. To the author’s knowledge, all adaptive beamformers currently available in the literature assume that the sensors are stationary over the time required to ...
Michael V. Greening, Jane E. Perkins
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Journal of Medical Ultrasonics, 2017
A number of studies aimed at improvement of ultrasound image quality, such as spatial resolution and contrast, have been conducted. Apodization is known as an important factor that determines image quality. However, in the case of amplitude and phase estimation (APES) beamforming, a kind of adaptive beamformer that has been employed in medical ...
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A number of studies aimed at improvement of ultrasound image quality, such as spatial resolution and contrast, have been conducted. Apodization is known as an important factor that determines image quality. However, in the case of amplitude and phase estimation (APES) beamforming, a kind of adaptive beamformer that has been employed in medical ...
openaire +3 more sources
Adaptive monopulse beamforming [PDF]
Proceedings of the IEEE, 1976 A new receive-array adaptive beamformer configuration is presented. The array output signal consists of the difference between a conventionally weighted beam and an adaptive beam that is constrained to have a spatial null in the direction of interest. Adaptation then provides minimum total array output power.
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Adaptive Beamforming and Postfiltering
2008In this chapter, we explore many of the basic concepts of array processing with an emphasis on adaptive beamforming for speech enhancement applications. We begin in Sect. 47.1 by formulating the problem of microphone array in a noisy and reverberant environment. In Sect.
Israel Cohen, Sharon Gannot
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Robust Adaptive Beamforming via Simplified Interference Power Estimation
IEEE Transactions on Aerospace and Electronic Systems, 2019Adaptive beamformer is very sensitive to model mismatch, especially when the signal-of-interest is present in the training data. In this paper, we focus on the topic of robust adaptive beamforming (RAB) based on interference-plus-noise covariance matrix (
Zhi Zheng +3 more
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Adaptive-adaptive subarray narrowband beamforming
IEEE International Conference on Acoustics Speech and Signal Processing, 1993A two-stage adaptive narrowband beamformer is introduced. Adaptive beamformers give high-resolution angle-of-arrival estimates, but at considerable computational cost. To reduce the computational cost, N. Owsley and D. Abraham (1989) have introduced a two-stage beamformer-conventional first-stage, adaptive second-stage-which gives near full adaptive ...
J.A. Nuttall, Peter Willett
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Multichannel Adaptive Beamforming
2004Multiantenna transceivers have received a considerable attention when developing next generation wireless communication systems. In this chapter we discuss different alternatives of utilizing multiple antennas in commercial wireless communication systems. By multichannel adaptive beamforming we understand a concept where the receiver estimates multiple
Timo Korhonen +2 more
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IEEE Transactions on Vehicular Technology, 2018
To ensure link reliability and signal receiving quality, robust adaptive beamforming (RAB) is vital important in mobile communications. In this paper, we propose a new RAB algorithm based on interference-plus-noise covariance (INC) matrix reconstruction ...
Zhi Zheng +3 more
semanticscholar +1 more source
To ensure link reliability and signal receiving quality, robust adaptive beamforming (RAB) is vital important in mobile communications. In this paper, we propose a new RAB algorithm based on interference-plus-noise covariance (INC) matrix reconstruction ...
Zhi Zheng +3 more
semanticscholar +1 more source