Results 21 to 30 of about 1,677,217 (347)
Distributed processing of a fractal array beamformer [PDF]
, 2013 Fractals have been proven as potential candidates for satellite flying formations, where its different elements represent a thinned array. The distributed and low power nature of the nodes in this network motivates distributed processing when using such ...
Corr, Jamie +4 more
core +1 more source
Low-Complexity Propagator Based Two Dimensional Angle Estimation for Coprime MIMO Radar
IEEE Access, 2018 The problem of 2-D angle estimation for coprime multiple-input multiple-output (MIMO) radar is considered, and a low-complexity propagator based method is proposed.
Jianfeng Li, Defu Jiang
doaj +1 more source
3D Printed Metallic Dual-Polarized Vivaldi Arrays on Square and Triangular Lattices [PDF]
, 2021 We report the first Vivaldi arrays monolithically fabricated exclusively using commercial, low-cost, 3D metal printing (direct metal laser sintering). Furthermore, we developed one of the first dual-polarized Vivaldi arrays on a triangular lattice, and compare it to a square lattice array.
arxiv +1 more source
The Journal of Engineering, 2019 Fractionally spaced super-exponential (FSSE) algorithm has the disadvantage of computational complexity since it exploits high-order statistics explicitly.
JinLiang Bai +4 more
doaj +1 more source
Direction of Arrival Estimation of Quasi-Stationary Signals Using Unfolded Coprime Array
IEEE Access, 2017 Direction of arrival (DOA) estimation of quasi-stationary signals (QSS) is discussed in this paper, and an algorithm using unfolded coprime array is proposed.
Jianfeng Li, Xiaofei Zhang
doaj +1 more source
Sensors, 2023 Sidelobe suppression is a major challenge in wideband beamforming for acoustic research, especially in high noise and reverberation environments. In this paper, we propose a multi-objective NSGA-II wideband beamforming method based on a spherical ...
Zhenghong Liu +4 more
doaj +1 more source
Sparse Symmetric Linear Arrays with Low Redundancy and a Contiguous Sum Co-Array [PDF]
, 2020 Sparse arrays can resolve significantly more scatterers or sources than sensor by utilizing the co-array - a virtual array structure consisting of pairwise differences or sums of sensor positions. Although several sparse array configurations have been developed for passive sensing applications, far fewer active array designs exist.
arxiv +1 more source
Array processing in cryoseismology
, 2023 Abstract. Seismicity at glaciers, ice sheets and ice shelves provides observational constraint of a number of glaciological processes. Detecting and locating this seismicity, specifically icequakes, is a necessary first step in studying processes such as basal slip, crevassing, and imaging ice fabric, for example.
Thomas Samuel Hudson +4 more
openaire +2 more sources
Optimal Excitation Matching Strategy for Sub-Arrayed Phased Linear Arrays Generating Arbitrary-Shaped Beams [PDF]
IEEE Transactions on Antennas and Propagation, vol. 68, no. 6, pp.
4638-4647, June 2020, 2021 The design of phased arrays able to generate arbitrary-shaped beams through a sub-arrayed architecture is addressed here. The synthesis problem is cast in the excitation matching framework, so as to yield clustered phased arrays providing optimal trade-offs between the complexity of the array architecture (i.e., the minimum number of control points at ...
arxiv +1 more source
Sensors, 2019 This paper presents an efficient framework for estimating the direction-of-arrival (DOA) of wideband sound sources. The proposed framework provides an efficient way to construct a wideband cross-correlation matrix from multiple narrowband cross ...
Bandhit Suksiri, Masahiro Fukumoto
doaj +1 more source