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61
Satellite phased arrays for direct-to-handset satellite: key technologies and future vision
Published 2024-04-01“…To address the long distance and significant loss in satellite-to-ground wireless link, new demands are imposed on satellite phased arrays by direct-to-handset satellite. By analyzing the practical requirements of direct-to-handset satellite, the advantages and disadvantages of various beamforming architectures were outlined, then the proper selection strategy of beamforming architecture was proposed. …”
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62
Conversion of methane to C2 liquid oxygenates by Ru atom arrays
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63
Gold Nanoparticles Array Growth from an Aqueous Solution on the Conductive Surface
Published 2017-06-01“…The growth conditions were selected for growth on a solid surface and AuNPs arrays on the ITO films were fabricated. …”
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64
Novel extended cyclic MUSIC algorithm based on uniform circular array
Published 2014-02-01“…By introducing cyclostationary theory into the estimation of direction of signal of arrival, a novel extended cy-clic MUSIC algorithm based on uniform circular array was developed. The proposed method could eliminate both noises and interferences in the same frequency band by exploiting simultaneously the information contained in both cyclic cor-relation matrix and cyclic conjugate correlation matrix of the extended array data vector. …”
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65
Large-Scale Integrated Multi-Lines Optical Phased Array Chip
Published 2020-01-01“…We design and integrate four optical phased arrays (OPAs) in a single chip. Each OPA possesses different output grating period. …”
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66
Minimum Redundancy MIMO Array Synthesis by means of Cyclic Difference Sets
Published 2013-01-01“…Selected examples are analyzed to point out the computational effectiveness of the CDS-based MR-MIMO array synthesis.…”
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67
Design of Wideband Multifunction Antenna Array Based on Multiple Interleaved Subarrays
Published 2016-01-01“…In view of the Fourier transform mapping between the element excitations and array factor of uniform linear antenna array, the spectrum of the array factor is first acquired with FFT and its energy distributions are investigated thoroughly. …”
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68
Synthesis of shared aperture thinned interleaved arrays with elements in concentric rings
Published 2023-02-01“…Among planar array antennas, concentric ring array (CRA) antennas have received considerable interest since it is symmetric and provides invariant beam pattern for 360° azimuthal coverage.In case of limited antenna aperture, there is great value to thinned interleaved CRA with low peak side lobe levels and a narrow main beam.The application of the cubic interpolation and density-weighting method in shared aperture array design was demonstrated by the low peak side lobe level synthesis of CRA.By adopting the Fourier-Bessel transform the relationship between the element’s excitation and array pattern, thinned interleaved problems were formulated as time-frequency synthesis problems.On the basis of the density-weighting method, element excitations of interleaved sub-array were carefully selected in an odd-even manner, which ensured the pattern matching of the generated sub-array.The iterative FFT algo rithm was adopted to thin the concentric ring array.Simulation results show that the proposed algorithm can achieve a favorable thinned and interleaved concentric ring array design with matched power patterns and low peak sidelobe levels.The problem of thinned and interleaved concentric ring arrays is solved, and the design of multi-function shared aperture thinned interleaved arrays with elements in concentric rings is realized.…”
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69
Synthesis of shared aperture thinned interleaved arrays with elements in concentric rings
Published 2023-02-01“…Among planar array antennas, concentric ring array (CRA) antennas have received considerable interest since it is symmetric and provides invariant beam pattern for 360° azimuthal coverage.In case of limited antenna aperture, there is great value to thinned interleaved CRA with low peak side lobe levels and a narrow main beam.The application of the cubic interpolation and density-weighting method in shared aperture array design was demonstrated by the low peak side lobe level synthesis of CRA.By adopting the Fourier-Bessel transform the relationship between the element’s excitation and array pattern, thinned interleaved problems were formulated as time-frequency synthesis problems.On the basis of the density-weighting method, element excitations of interleaved sub-array were carefully selected in an odd-even manner, which ensured the pattern matching of the generated sub-array.The iterative FFT algo rithm was adopted to thin the concentric ring array.Simulation results show that the proposed algorithm can achieve a favorable thinned and interleaved concentric ring array design with matched power patterns and low peak sidelobe levels.The problem of thinned and interleaved concentric ring arrays is solved, and the design of multi-function shared aperture thinned interleaved arrays with elements in concentric rings is realized.…”
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70
Photovoltaic Array Fault Detection Using Ensemble Learning-Based Technique
Published 2025-07-01“…The proposed model is trained using the selected photovoltaic array measurements, and its effectiveness is validated through a testing dataset, with performance indices derived from the confusion matrix. …”
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71
Thinned Virtual Array for Cramer Rao Bound Optimization in MIMO Radar
Published 2021-01-01“…As an important performance indicator of DOA estimation, Cramer–Rao Bound (CRB) is closely connected to the array configuration of the system. To reduce the complexity of the system and improve CRB performance at the same time, in this paper, the virtual array of MIMO radar is designed directly by selecting outputs from matched filters at the receive side. …”
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72
Virtual MOS Sensor Array Design for Ammonia Monitoring in Pig Barns
Published 2025-04-01“…While MOS sensors exhibit high sensitivity to various volatile compounds, temperature-cycled operation is commonly employed to enhance selectivity, effectively creating virtual sensor arrays. …”
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73
Antenna Array for Passive Radar: Configuration Design and Adaptive Approaches to Disturbance Cancellation
Published 2013-01-01“…We consider the selection of an antenna array configuration, composed of a small number of omnidirectional elements, to be exploited for passive radar sensors. …”
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74
Pattern Nulling of Linear Antenna Arrays Using Backtracking Search Optimization Algorithm
Published 2015-01-01“…An evolutionary method based on backtracking search optimization algorithm (BSA) is proposed for linear antenna array pattern synthesis with prescribed nulls at interference directions. …”
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75
Research on Multi-peak MPPT of Photovoltaic Array Based on Improved ICA Algorithm
Published 2022-08-01“…To solve the problem that the global extreme value tracking of photovoltaic array under multi-peak is easy to fall into local optimization, this paper proposes a multi-peak maximum power point tracking (MPPT) scheme of photovoltaic array based on an improved imperialist competitive algorithm (ICA) by exploring the applicability of standard ICA in the MPPT of photovoltaic array under local shadow. …”
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76
Learning efficient haptic shape exploration with a rigid tactile sensor array.
Published 2020-01-01“…This environment contains a set of rigid static objects representing a selection of one-dimensional local shape features embedded in a 3D space: an edge, a flat and a convex surface. …”
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77
A Joint Optimization Method for Power and Array of Multi-Point Sources System
Published 2025-07-01“…Furthermore, the optimal JSR value was reduced by an average of 1.14 dB compared with that of the conventional selection scheme.…”
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78
Serial Patch Array Antenna for an FMCW Radar Housed in a White Cane
Published 2016-01-01“…The coaxial-to-microstrip transition necessary for feeding the antennas has been studied together with the characteristics of serial arrays of increasing number of patches. Based on this study, a serial array with 8 patches has been selected for the transmitting and receiving antennas. …”
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79
Research on projection light field encoding and reconstruction based on parallel camera arrays
Published 2025-08-01“…Abstract This research introduces an advanced projection-based 3D light field reconstruction algorithm, specifically engineered to tackle the limitations of the conventional SPOC algorithm—namely its dependency on a symmetric (circular) framework and dense array image acquisition. The algorithm’s core innovation resides in the utilization of disparity images captured by parallel cameras: by selecting the two cameras with positions closest to the ideal configuration, it identifies pixels most similar to the object point through their captured imagery, thereby assigning pixel values to the projected image array. …”
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80
On-chip integration of metasurface-doublet for optical phased array with enhanced beam steering
Published 2023-01-01“…Here an on-chip metasurface-doublet is proposed to offer angle magnification integrated with a port-selected optical phased array. It is implemented by combing convex and concave metalenses with the quadratic phase distribution, which is precisely integrated on the OPA chip by layer-by-layer fabrication process. …”
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