Sub-Nyquist sampling of ECG signals based on the extension of variable pulsewidth model

G Huang, Z Yang, W Lu, H Peng… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
To prevent lifestyle diseases, portable heartbeat detection systems by electrocardiograms
(ECGs) for daily life monitoring have attracted attentions. For portable systems, power …

Sub-Nyquist sampling of ECG signals with differentiated VPW optimization model

G Huang, Z Yang, W Lu, H Peng… - IEEE Sensors Journal, 2022 - ieeexplore.ieee.org
In recent years, developments in wearable technologies and wireless communication have
enabled wearable ECG monitoring. Long-term ECG monitoring result in large amounts of …

Axial super-resolution in ultrasound imaging with application to non-destructive evaluation

SK Shastri, S Rudresh, R Anand, S Nagesh… - Ultrasonics, 2020 - Elsevier
A fundamental challenge in non-destructive evaluation using ultrasound is to accurately
estimate the thicknesses of different layers or cracks present in the object under …

Sub-nyquist sampling and measurement of FRI signals with additive shot noise

S Yun, H Xu, N Fu, L Qiao - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
To mitigate the impact of shot noise on the parameter measurement process of finite rate of
innovation (FRI) signals, this article proposes a sub-Nyquist modulation sampling system …

Sub-Nyquist sampling and measurement of MPSK signal based on parameter matching

S Yun, N Fu, L Qiao - IEEE Transactions on Instrumentation …, 2023 - ieeexplore.ieee.org
Accurate measurement of the M-ary phase shift keying (MPSK) signal determined by finite
parameters per unit of time is significant in engineering fields, such as digital microwave and …

Sub-Nyquist sampling system for pulse streams based on non-ideal filters

G Huang, S Zhang, L Chen, H Han, W Lu - Digital Signal Processing, 2022 - Elsevier
Recent developed finite rate of innovation (FRI) sampling framework provides an efficient
way for sub-Nyquist sampling of pulse streams, which are widely applied to the fields of …

FROG-measurement based phase retrieval for analytic signals

Y Li, Y Ma, D Han - Applied and Computational Harmonic Analysis, 2021 - Elsevier
While frequency-resolved optical gating (FROG) is widely used in characterizing the ultrafast
pulse in optics, analytic signals are often considered in time-frequency analysis and signal …

Finite rate of innovation sampling of Gaussian pulse streams with variable shape

S Yun, N Fu, L Qiao - Digital Signal Processing, 2023 - Elsevier
Abstract The existing Finite Rate of Innovation (FRI) sampling theory can realize the efficient
measurement of Gaussian pulse streams with fixed modal functions. However, it is hard to …

Parameter estimation of hybrid pulse streams based on sub-Nyquist sampling and Shift-invariant subspace projection

S Yun, Y Liu, N Fu, L Qiao - Signal Processing, 2024 - Elsevier
Abstract Finite Rate of Innovation (FRI) sampling theory offers an efficient approach for the
sub-Nyquist measurement of the short pulse stream signal, but it can only address …

ECG-TEM: Time-based sub-Nyquist sampling for ECG signal reconstruction and Hardware Prototype

H Naaman, D Bilik, S Savariego, M Namer… - arXiv preprint arXiv …, 2024 - arxiv.org
Portable heart rate monitoring (HRM) systems based on electrocardiograms (ECGs) have
become increasingly crucial for preventing lifestyle diseases. For such portable systems …