Results 31 to 40 of about 7,286,512 (152)
, 2022 This letter presents a millimeter-wave (mm-wave) vector-modulated phase shifter (VMPS) for phased-array applications. To improve the phase-shift accuracy without drastically increasing design complexity, the proposed VMPS structure employs variable-gain ...
de Vreede, L.C.N. (author) +7 more
core +1 more source
IEEE Access, 2019 Direction-of-arrival (DOA) estimation in the presence of gain-phase errors for uniform-circular-array (UCA) is addressed in this paper. Thanks to the uniformity and cycle property of UCA, the long data vector constructed with the proper entries of the ...
Weiwei Hu
doaj +1 more source
IEEE Access, 2020 Multiple-input multiple-output (MIMO) radars are essential in many Internet-of-Things (IoT) applications. Gain-phase error calibration is an important branch in MIMO radar.
Guanqun Sheng +3 more
doaj +1 more source
IEEE Access, 2021 This paper demonstrates a Ka-band CMOS phased-array receiver capable of generating four balanced beams from two inputs. A passive four-beam symmetrical differential network is proposed to distribute two input signals to eight channels and facilitate beam
Na Peng, Peng Gu, Dixian Zhao
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Robust FDA-STAP Under Transmit Array Gain and Phase Error for Range Ambiguity
EngFrequency diverse array (FDA)-aided spacetime adaptive processing (STAP) is a useful approach to suppressing range-ambiguous clutter in airborne radars.
Di Song +3 more
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Phase-level synchronization for physical-layer network coding [PDF]
, 2012 Physical-layer network coding (PNC) brings throughput improvement for wireless networks. However, its synchronization requirement is widely recognized as an obstacle to its implementation.
Song, Q +7 more
core +1 more source
IEEE Open Journal of Antennas and Propagation, 2023 Antenna gain determination using the Friis equation typically employs the geometrically determined physical distance between antenna apertures, which often underestimates the gain. Herein, we propose and demonstrate an accurate antenna-gain determination
Yuta Hayashi +3 more
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Phase regeneration of an M-PSK signal using partial regeneration of its M/2-PSK second phase harmonic [PDF]
, 2015 We propose and numerically investigate a phase regeneration technique that allows an M-PSK signal to be phase regenerated by an M/2-PSK (or even M/4-PSK) phase regenerator (applicable for M = 2k, with k an integer). This scheme comprises three main parts;
Parmigiani, Francesca +3 more
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Channel Error Compensation for Multi-channel SAR Based on Cost Function(in English)
Leida xuebao, 2014 Multi-channel in azimuth is a technique to achieve high-resolution as well as wide-swath in Synthetic Aperture Radar (SAR) systems. Channel error is inevitable in multi-channel systems and it induces blurring in subsequent SAR imagery.
Zhang Lei +4 more
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Influence of Amplitude-phase Error on MVDR Beamforming of Volume Array
水下无人系统学报Volume array is a kind of three-dimensional array composed of multiple hydrophones, which can increase the aperture of the receiving array of the submarine target and obtain a large spatial gain.
Yan HUANG +3 more
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