Results 31 to 40 of about 19,817 (256)
Fronthaul Optical Links Using Sub-Nyquist Sampling Rate ADC for B5G/6G Sub-THz Ma-MIMO Beamforming
IEEE Access, 2022 This paper details fronthaul optical links using sub-Nyquist sampling rate analog-to-digital converters (ADCs) for Beyond fifth generation (B5G) and 6G sub-THz massive multiple-input multiple-output (Ma-MIMO) beamforming.
Pin-Hsuan Ting +5 more
doaj +1 more source
Testbed for Sub-Nyquist Wideband Spectrum Monitoring
Revista Ingenierías Universidad de Medellín, 2020 Radioelectric spectrum management is a concern for today’s world, mainly due to the misuse that has been given to this resource through the years, especially on the UHF band.
Juan Felipe Medina Lee +3 more
doaj +1 more source
Special Considerations in Estate Planning for Same-Sex and Unmarried Couples [PDF]
, 2013 Sub-Nyquist sampling makes use of sparsities in analog signals to sample them at a rate lower than the Nyquist rate. The reduction in sampling rate, however, comes at the cost of additional digital signal processing (DSP) which is required to reconstruct
Johansson, Håkan +1 more
core +2 more sources
Sub-Nyquist SAR via Quadrature Compressive Sampling with Independent Measurements
Remote Sensing, 2019 This paper presents an efficient sampling system for the acquisition of synthetic aperture radar (SAR) data at sub-Nyquist rate. The system adopts a quadrature compressive sampling architecture, which uses modulation, filtering, sampling and digital ...
Huizhang Yang +3 more
doaj +1 more source
Blind sub-Nyquist GNSS signal detection [PDF]
2016 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2016 A satellite navigation receiver traditionally searches for positioning signals using an acquisition procedure. In situations, in which the required information is only a binary decision whether at least one positioning signal is present or absent, the procedure represents an unnecessarily complex solution.
Ondrej Daniel +6 more
openaire +2 more sources
Sub-Nyquist pulse Doppler MIMO radar [PDF]
2017 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2017 Pulse Doppler multiple input multiple output (MIMO) radar allows to simultaneously detect targets' range, azimuth and velocity. Achieving high resolution requires a large number of transmit and receive antennas, as well as high sampling rates leading to a torrent of samples.
Cohen, David +3 more
openaire +1 more source
IEEE Access, 2018 Sub-Nyquist sampling is a common means of interfering with inverse synthetic aperture radar (ISAR) imaging, which has been validated for the feasibility of 1-D compressive sensing (CS) ISAR imaging.
Jiyuan Chen +3 more
doaj +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
The Intriguing Structure of Stripes in GRACE Geopotential Models
Remote Sensing, 2021 Geopotential models derived from Gravity Recovery and Climate Experiment (GRACE) mission measurements are significantly obscured by the presence of a systematic artifact, known as longitudinal stripes.
Spiros Pagiatakis, Athina Peidou
doaj +1 more source
Sub-Nyquist signal-reconstruction-free operational modal analysis and damage detection in the presence of noise [PDF]
, 2016 Motivated by a need to reduce energy consumption in wireless sensors for vibration-based structural health monitoring (SHM) associated with data acquisition and transmission, this paper puts forth a novel approach for undertaking operational modal ...
Giaralis, A. +2 more
core +1 more source