Sub-Nyquist sampling for short pulses with Gabor frames
EURASIP Journal on Wireless Communications and Networking, 2017 For analog signals comprised of several, possibly overlapping, finite duration pulses with unknown shapes and time positions, an efficient sub-Nyquist sampling systems is based on Gabor frames.
Cheng Wang +5 more
doaj +1 more source
A Low Complexity Sensing Algorithm for Non-Sparse Wideband Spectrum
Sensors, 2022 The vast majority of existing sub-Nyquist sampling wideband spectrum sensing (WSS) methods default to a sparse spectrum. However, research data suggests that in the near future, the wideband spectrum will no longer be sparse.
Shiyu Ren +4 more
doaj +1 more source
Multi-channel sub-Nyquist cross-Spectral Estimation for Modal Analysis of Vibrating Structures [PDF]
, 2015 Operational modal analysis (OMA) is a widely used construction verification and structural health monitoring technique aiming to obtain the modal properties of vibrating civil engineering structures subject to ambient dynamic loads by collecting and ...
Giaralis, A. +2 more
core +1 more source
Compressive power spectrum sensing for vibration-based output-only system identification of structural systems in the presence of noise [PDF]
, 2015 Motivated by the need to reduce monetary and energy consumption costs of wireless sensor networks in undertaking output-only/operational modal analysis of engineering structures, this paper considers a multi-coset analog-toinformation converter for ...
Amezquita-Sanchez +8 more
core +1 more source
Covariance-based OFDM spectrum sensing with sub-Nyquist samples [PDF]
Signal Processing, 2015 30 pages, 5 ...
S. Alireza Razavi +2 more
openaire +2 more sources
Phased Fractional Lower-Order Cyclic Moment Processed in Compressive Signal Processing
IEEE Access, 2019 In signal processing research, cyclostationarity and fractional lower-order statistics (FLOS) are two important solutions to non-stationary signals and non-Gaussian noises, respectively.
Tao Liu +4 more
doaj +1 more source
A Signal Theoretic Approach for Envelope Analysis of Real-Valued Signals
IEEE Access, 2017 Analytic envelope is the most prevalent definition of envelopes of real-valued signals. However, analytic signals are not adopted by some envelope detectors in application.
Yanli Yang
doaj +1 more source
Sample-Efficient Spatio-Spectral Whitespace Detection Using Least Matching Pursuit
IEEE Access, 2021 Multi-antenna wireless communication improves spectral efficiency by reusing frequencies at different locations in space using beamforming and spatial multiplexing.
Emre Gonultas +3 more
doaj +1 more source
A sub-Nyquist co-prime sampling music spectral approach for natural frequency identification of white-noise excited structures [PDF]
, 2018 Motivated by practical needs to reduce data transmission payloads in wireless sensors for vibration-based monitoring of civil engineering structures, this paper proposes a novel approach for identifying resonant frequencies of white-noise excited ...
Giaralis, A., Gkoktsi, K.
core +1 more source
A Constrained Random Demodulator for Sub-Nyquist Sampling [PDF]
IEEE Transactions on Signal Processing, 2013 Preprint of a journal paper accepted for publication in: IEEE Trans. Signal Processing, 2013 (copyright has been transferred to IEEE)
Harms, Andrew +2 more
openaire +2 more sources