Results 1 to 10 of about 89,489 (167)
Joint Coherent/Non-Coherent Detection for Distributed Massive MIMO: Enabling Cooperation Under Mixed Channel State Information [PDF]
SensorsBeyond-5G wireless systems increasingly rely on distributed massive multiple-input multiple-output (MIMO) architectures to achieve high spectral efficiency, low latency, and wide coverage.
Supuni Gunasekara +3 more
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Experimental Study on Partially Coherent Optical Coherent Detection
PhotonicsWhen coherent detection occurs, the polarization mismatch between signal light and local oscillator light can reduce the efficiency of coherent detection.
Jingyuan Liang +3 more
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External Modulation Optical Coherent Domain Reflectometry with Long Measurement Range
Sensors, 2021 Optical coherent domain reflectometry (OCDR) can achieve a high spatial resolution that is independent of the bandwidth of the receiver, but the measurement range is usually very limited.
Yinghong Xue +2 more
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Frontiers in Physics, 2021 The optical orthogonal frequency division multiplexing (OFDM) is proven to be a most promising technology for the next-generation high-capacity and ultra-wide bandwidth 5G communication systems.
Sunil N Thool +2 more
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On the Communication Performance of Airborne Distributed Coherent Radar
Applied Sciences, 2022 Compared with a monostatic radar, airborne distributed coherent radar (ADCR) has been widely applied thanks to its flexibility, greater degree of freedom, stronger detection, and anti-jamming ability.
Qinhao Wu +3 more
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Coherent Detection of Electron Dephasing [PDF]
Physical Review Letters, 2010 We show that an Aharonov-Bohm (AB) ring with asymmetric electron injection can act as a coherent detector of electron dephasing. The presence of a dephasing source in one of the two arms of a moderately-to-highly asymmetric ring changes the response of the system from total reflection to complete transmission while preserving the coherence of the ...
Strambini E +6 more
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Ambient OFDM Pilot-Aided Backscatter Communications: Concept and Design
IEEE Access, 2021 This paper investigates a backscatter communications system that exploits ambient pilot symbols used in existing standards based on orthogonal frequency-division multiplexing (OFDM), such as IEEE802.11, in order to realize ultra-low power communications ...
Takanori Hara +2 more
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An All-Digital Optical Phase-Locked Loop Suitable for Satellite Downlinks
Photonics, 2023 The optical signal propagation used in satellite uplinks and downlinks is influenced by absorption, scattering, and changes in the atmospheric refractive index or turbulence, causing optical signal attenuation.
Jognes Panasiewicz +4 more
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Integrated Components and Solutions for High-Speed Short-Reach Data Transmission
Photonics, 2021 According to different transmission distances, application scenarios of a data center mainly include intra- and inter-data center optical interconnects.
Lin Jiang +7 more
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Detection and discrimination of coherent motion [PDF]
Perception & Psychophysics, 1990 When viewing a pair of bars defined by the difference of spatial Gaussian functions (DOGs), human observers can discriminate accurately the relative movements of the bars, even when they differ in spatial frequency. On each trial, observers viewed two brief presentation intervals in which a pair of vertically oriented DOGs moved randomly back and forth
L, Mowafy, R, Blake, J S, Lappin
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