Sub-Nyquist Sampling OFDM Radar With a Time-Frequency Phase-Coded Waveform [PDF]
IEEE Transactions on Vehicular TechnologyThis paper presents a time-frequency phase-coded sub-Nyquist sampling orthogonal frequency division multiplexing (PC-SNS-OFDM) radar system to reduce the analog-to-digital converter (ADC) sampling rate without any additional hardware or signal processing.
Seonghyeon Kang +2 more
semanticscholar +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
Context-Adaptive Sub-Nyquist Sampling for Low-Power Wearable Sensing Systems
IEEE Transactions on Mobile Computing, 2022 This paper investigates a context-adaptive sample acquisition strategy at sub-Nyquist sampling rate for wearable embedded sensor devices. Our approach can be applied to compressive sensing frameworks to minimise sampling and transmission costs.
Giovanni Schiboni +4 more
semanticscholar +1 more source
Low Complexity Sub-Nyquist Wideband Spectrum Sensing for Cognitive Radio
IEEE Access, 2018 In order to provide more available spectrum and quickly switchover, wideband spectrum sensing (WSS) is desirable for cognitive radio. Sub-Nyquist sampling is crucial for WSS to reduce energy and computational costs, while the existing algorithms based on
Jian Yang, Min Jia, Xuemai Gu, Qing Guo
doaj +1 more source
Assessment of sub-Nyquist deterministic and random data sampling techniques for operational modal analysis [PDF]
, 2016 This paper assesses numerically the potential of two different spectral estimation approaches supporting non-uniform in time data sampling at sub-Nyquist average rates (i.e., below the Nyquist frequency) to reduce data transmission payloads in wireless ...
Agathoklis Giaralis +11 more
core +1 more source
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
Random Triggering-Based Sub-Nyquist Sampling System for Sparse Multiband Signal [PDF]
IEEE Transactions on Instrumentation and Measurement, 2017 We propose a novel random triggering-based modulated wideband compressive sampling (RT-MWCS) method to facilitate efficient realization of sub-Nyquist rate compressive sampling systems for sparse wideband signals.
Yijiu Zhao, Y. Hu, Jingjing Liu
semanticscholar +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
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
Wideband Power Spectrum Estimation Based on Sub-Nyquist Sampling in Cognitive Radio Networks
IEEE Access, 2019 The wideband spectrum estimation is an essential step in the wireless network. In order to avoid employing power-hungry high-rate analog-to-digital converters (ADCs), the CS-based sub-Nyquist sampling approaches are used to estimate the wideband spectrum.
Yijiu Zhao +4 more
doaj +1 more source