Results 31 to 40 of about 3,432 (185)
Remote Sensing, 2023 The adaptive beamforming algorithm can realize interference suppression and navigation signal enhancement, and has been widely used. However, achieving high-precision real-time estimation of the direction of arrival (DOA) parameters of navigation signals
Jian Wu +4 more
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A high-resolution DOA estimation method for deep-sea multipath coherent channels [PDF]
Zhihui kongzhi yu fangzhenAiming at the problem of error in deep-sea DOA(Direction of Arrival, DOA) estimation based on plane wave sound field model, this paper establishes the array signal model of deep-sea DOA estimation under multipath channel based on ray theory.
CAO Yongjie, MAO Weining
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Remote Sensing, 2022 The antispoofing method using the direction-of-arrival (DOA) feature can effectively improve the application security of the global navigation satellite system (GNSS) receivers.
Yuqing Zhao +3 more
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Efficiency of subspace-based DOA estimators [PDF]
Signal Processing, 2007 This paper addresses subspace-based direction of arrival (DOA) estimation and its purpose is to complement previously available theoretical results generally obtained for specific algorithms. We focus on asymptotically (in the number of measurements) minimum variance (AMV) estimators based on estimates of orthogonal projectors obtained from singular ...
Habti Abeida, Jean Pierre Delmas
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A Covariance Matrix Reconstruction Approach for Single Snapshot Direction of Arrival Estimation
Sensors, 2022 Achieving accurate single snapshot direction of arrival (DOA) information significantly improves communication performance. This paper investigates an accurate and high-resolution DOA estimation technique by enabling single snapshot data collection and ...
Murdifi Muhammad +4 more
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DOA Estimation for 6G Communication Systems
2023 12th International Conference on Modern Circuits and Systems Technologies (MOCAST), 2023 The objective of this study is to analyze and compare different neural network (NN) architectures as multi-class classifiers to estimate the direction of arrival (DOA) using a uniform linear array (ULA). The study specifically investigates the prediction skills of three NNs: feed forward NN (FFNN), convolutional NN (CNN), and residual NN (ResNet) when ...
Al Kassir, Haya +7 more
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A Sum-of-Squares and Semidefinite Programming Approach for Maximum Likelihood DOA Estimation
Sensors, 2016 Direction of arrival (DOA) estimation using a uniform linear array (ULA) is a classical problem in array signal processing. In this paper, we focus on DOA estimation based on the maximum likelihood (ML) criterion, transform the estimation problem into a ...
Shu Cai, Quan Zhou, Hongbo Zhu
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Two-Dimensional Underdetermined DOA Estimation of Quasi-Stationary Signals using Parallel Nested Array [PDF]
Radioengineering, 2020 In this paper, a two dimensional underdetermined direction of arrival estimation (DOA) of quasi-stationary signals using a parallel nested array structure is investigated.
X. Y. Pan +3 more
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UWB joint TOA and DOA estimation [PDF]
2009 IEEE International Conference on Ultra-Wideband, 2009 This paper deals with the simultaneous estimation of Time of Arrival (TOA) and Direction of Arrival (DOA) in UWB systems considering multipath propagation. The estimation is performed in the frequency domain by computing a two dimensional power delay-angle spectrum based on the periodogram because of its low computational complexity.
LAGUNAS, Eva +2 more
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Direction-of-Arrival Estimation in Time-Modulated Linear Arrays Based on the MT-BCS Approach
International Journal of Antennas and Propagation, 2022 This article proposes a novel approach for the estimation of the direction-of-arrival (DoA) of multiple signals impinging on time-modulated arrays (TMAs).
Qing-He Zhang +2 more
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