Results 11 to 20 of about 456,541 (295)
Efficient DOA Estimation for Wideband Sources in Multipath Environment
Remote Sensing, 2022 A novel direction-of-arrival (DOA) estimator is proposed for the mixed uncorrelated and correlated wideband sources in the multipath environment. Firstly, the novel signal model is established using the aligned envelope technique. Next, the estimator can
Xiaoyu Zhang +3 more
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Signal recovery under cumulative coherence [PDF]
Journal of Computational and Applied Mathematics, 2019 This paper considers signal recovery in the framework of cumulative coherence. First, we show that the Lasso estimator and the Dantzig selector exhibit similar behavior under the cumulative coherence. Then we estimate the approximation equivalence between the Lasso and the Dantzig selector by calculating prediction loss difference under the condition ...
Li, Peng, Chen, Wengu
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Enhancing the Signal of Corticomuscular Coherence [PDF]
Computational and Mathematical Methods in Medicine, 2012 The availability of multichannel neuroimaging techniques, such as MEG and EEG, provides us with detailed topographical information of the recorded magnetic and electric signals and therefore gives us a good overview on the concomitant signals generated in the brain.
C. Micheli, Braun, Heinrich Christoph
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Persistent starspot signals on M dwarfs: multi-wavelength Doppler observations with the Habitable-zone Planet Finder and Keck/HIRES [PDF]
, 2020 Young, rapidly-rotating M dwarfs exhibit prominent starspots, which create quasiperiodic signals in their photometric and Doppler spectroscopic measurements.
Beard, Corey +25 more
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Frame coherence and sparse signal processing [PDF]
2011 IEEE International Symposium on Information Theory Proceedings, 2011 The sparse signal processing literature often uses random sensing matrices to obtain performance guarantees. Unfortunately, in the real world, sensing matrices do not always come from random processes. It is therefore desirable to evaluate whether an arbitrary matrix, or frame, is suitable for sensing sparse signals.
Mixon, Dustin G. +2 more
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Spatiotemporal coherent summation of Ultra-Wideband chaotic radio pulses. Experiment [PDF]
Известия высших учебных заведений: Прикладная нелинейная динамикаThe purpose of this work is to experimentally prove the physical feasibility of coherent addition of chaotic signals (ultra-wideband chaotic radio pulses) in space and time.
Kuzmin, Lev Viktorovich +3 more
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IEEE Access, 2020 This paper considers the coherent integration problem for a low-observable maneuvering target, where the velocity and acceleration result in range migration (RM) and Doppler frequency migration (DFM) within the coherent pulse interval.
Jinzhi Xiang, Wei Cui, Jing Tian
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Coherent global motion in the absence of coherent velocity signals [PDF]
Current Biology, 2000 It is widely believed that form and motion are analysed separately in mammalian visual systems. Form is confined within a stream that projects ventrally from V1 to the inferotemporal cortex, and motion within a stream that projects more dorsally, to the posterior parietal cortex [1] [2] [3] [4] [5] [6] [7].
Ross, John +2 more
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A fully-coherent all-sky search for gravitational-waves from compact binary coalescences [PDF]
, 2015 We introduce a fully-coherent method for searching for gravitational wave signals generated by the merger of black hole and/or neutron star binaries.
Fairhurst, S. +2 more
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IEEE Access, 2023 A technique to estimate the DOAs of coherent sources using a passive frequency beam scanning leaky-wave antenna (FBS-LWA) with a subspace based method is presented.
Diyuan Xu +4 more
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