Fault diagnosis of planetary gearbox under variable-speed conditions using an improved adaptive chirp mode decomposition

S Chen, M Du, Z Peng, Z Feng, W Zhang - Journal of sound and vibration, 2020 - Elsevier
Fault diagnosis of planetary gearboxes under variable-speed conditions is a challenging
task since the vibration signals are non-stationary and have more complicated characteristic …

Camera-augmented non-contact vital sign monitoring in real time

A Shokouhmand, S Eckstrom, B Gholami… - IEEE Sensors …, 2022 - ieeexplore.ieee.org
This study develops a camera-guided frequency-modulated continuous-wave (FMCW) radar
to monitor vital signs. A red-green-blue-depth (RGB-D) camera estimates the human torso …

On the estimation of LFM signal parameters: Analytical formulation

A Serbes - IEEE Transactions on Aerospace and Electronic …, 2017 - ieeexplore.ieee.org
We propose analytical formulations, approximations, upper and lower bounds for the angle
sweep of maximum magnitude of fractional Fourier transform of mono-and multicomponent …

Measurement of target range and Doppler shift by incorporating PDM-enabled FMCW-based photonic radar

A Sharma, S Chaudhary, J Malhotra, A Parnianifard… - Optik, 2022 - Elsevier
Measurement is an essential part of modern science as well as of engineering, commerce,
and daily life. As per recent reports of world health organization (WHO), most accidents …

Performance of chirp parameter estimation in the fractional Fourier domains and an algorithm for fast chirp-rate estimation

O Aldimashki, A Serbes - IEEE Transactions on Aerospace and …, 2020 - ieeexplore.ieee.org
This article addresses the problem of fast and accurate chirp signal parameter estimation in
fractional Fourier domains. By employing a perturbation analysis, it is shown that the …

LPI waveform design for radar system against cyclostationary analysis intercept processing

X Liu, T Zhang, X Yu, Q Shi, G Cui, L Kong - Signal Processing, 2022 - Elsevier
Low probability of intercept (LPI) property has provided the radar system with superior
survivability on the practical battlefield. In this paper, we put forward a waveform design …

Jdmr-net: Joint detection and modulation recognition networks for lpi radar signals

Z Zhang, M Zhu, Y Li, S Wang - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Low probability of intercept (LPI) radars are widely used in modern electromagnetic
environments due to their excellent anti-interception performance. However, this inevitably …

IF estimation of FM signals based on time-frequency image

H Zhang, G Bi, W Yang, SG Razul… - IEEE Transactions on …, 2015 - ieeexplore.ieee.org
This paper addresses the problem of estimating the instantaneous frequency (IF) of
multicomponent radar signals, which are assumed to be frequency-modulated (FM). The …

Analysis of multicomponent LFM signals by Teager Huang-Hough transform

A Bouchikhi, AO Boudraa, JC Cexus… - IEEE Transactions on …, 2014 - ieeexplore.ieee.org
A novel detection approach of linear FM (LFM) signals, with single or multiple components,
in the time-frequency plane of Teager-Huang (TH) transform is presented. The detection …

Enhanced detection of Doppler-spread targets for FMCW radar

W Zhang, H Li, G Sun, Z He - IEEE Transactions on Aerospace …, 2019 - ieeexplore.ieee.org
Frequency-modulated continuous waveform signals are of great interest in automotive radar,
perimeter radar, and wide-area surveillance radar applications. For automotive radars and …