Results 11 to 20 of about 241,566 (298)
RF Spectrum Sensing Based on an Overdamped Nonlinear Oscillator Ring for Cognitive Radios
Sensors, 2016 Existing spectrum-sensing techniques for cognitive radios require an analog-to-digital converter (ADC) to work at high dynamic range and a high sampling rate, resulting in high cost.
Zhi-Ling Tang, Si-Min Li, Li-Juan Yu
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RESEARCH OF SOME PROPERTIES OF ALPHABETS BASED ON MUTUALLY ORTHOGONAL BROADBAND SIGNALS [PDF]
Научно-технический вестник информационных технологий, механики и оптики, 2019 The paper presents preliminary studies and analysis of some properties of alphabets built on the basis of the broadband signal symbols. We study the broadband signal alphabets characters and separate broadband signal symbols.
A. Y. Grishentsev +2 more
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Sensitivity of intracavity filtering schemes for detecting gravitational waves [PDF]
, 2014 We consider enhancing the sensitivity of future gravitational-wave detectors by adding optical filters inside the signal-recycling cavity -- an intracavity filtering scheme, which coherently feeds the sideband signal back to the interferometer with a ...
Chen, Yanbei +3 more
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Broadband angle of arrival estimation methods in a polynomial matrix decomposition framework [PDF]
, 2013 A large family of broadband angle of arrival estimation algorithms are based on the coherent signal subspace (CSS) method, whereby focussing matrices appropriately align covariance matrices across narrowband frequency bins.
Alrmah, Mohamed +4 more
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Космические аппараты и технологии, 2023 To effectively receive a useful broadband signal, it is necessary to compensate for distortions caused by the complex frequency-dependent coefficient of the receiving and transmitting antenna, multiplicative interference and noise from the heterogeneity ...
A. N. Dementyev +5 more
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Sensors, 2019 As the size of the radar hardware platform becomes smaller and smaller, the cost becomes lower and lower. The application of indoor radar-based human motion recognition has become a reality, which can be realized in a low-cost device with simple ...
Liubing Jiang +4 more
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Scientific Reports, 2020 An amendment to this paper has been published and can be accessed via a link at the top of the paper.
Sunxiang Pan +3 more
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Experimental observation of the trapped rainbow [PDF]
, 2009 We report on the first experimental demonstration of the broadband "trapped rainbow" in the visible frequency range using an adiabatically tapered waveguide.
Alexander V. Kildishev +4 more
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W-band waveguide-packaged InP HEMT reflection grid amplifier [PDF]
, 2006 This letter presents a 79-GHz broadband reflection-type grid amplifier using spatial power combining to combine the power of 64 unit cells. Each unit cell uses a two-stage cascade configuration with InP HEMTs arranged as a differential pair.
Cheung, Chun-Tung +3 more
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IEEE Access, 2020 A lot of adaptive signal decomposition methods have been applied for nonstationary DPMIG electrical signals as they are always affected by noise. Recently, to solve the problems of former methods caused by the Gibbs phenomenon and the calculation of ...
Yanfeng Peng +8 more
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